diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 05627f0db9a30..f1ad6949ea737 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -438,7 +438,7 @@ repos:
         name: Check for language that we do not accept as community
         description: Please use more appropriate words for community documentation.
         entry: >
-          (?i)
+          (?ix)
           (black|white)[_-]?list|
           \bshe\b|
           \bhe\b|
@@ -451,25 +451,53 @@ repos:
         pass_filenames: true
         exclude: >
           (?x)
-          ^airflow/api_connexion/openapi/v1\.yaml$|
-          ^airflow/cli/commands/webserver_command\.py$|
-          ^airflow/config_templates/config\.yml$|
-          ^airflow/config_templates/default_airflow\.cfg$|
-          ^airflow/providers/|
-          ^airflow/www/fab_security/manager\.py$|
-          ^airflow/www/static/|
-          ^docs/.*$|
-          ^docs/apache-airflow-providers-apache-cassandra/connections/cassandra\.rst$|
-          ^docs/apache-airflow-providers-apache-hive/commits\.rst$|
-          ^tests/cli/commands/test_internal_api_command\.py$|
-          ^tests/cli/commands/test_webserver_command\.py$|
-          ^tests/integration/providers/apache/cassandra/hooks/test_cassandra\.py$|
-          ^tests/providers/|
-          ^tests/providers/apache/cassandra/hooks/test_cassandra\.py$|
-          ^tests/system/providers/apache/spark/example_spark_dag\.py$|
+          ^airflow/api_connexion/openapi/v1.yaml$|
+          ^airflow/cli/commands/webserver_command.py$|
+          ^airflow/config_templates/|
+          ^airflow/models/baseoperator.py$|
+          ^airflow/operators/__init__.py$|
+          ^airflow/providers/amazon/aws/hooks/emr.py$|
+          ^airflow/providers/amazon/aws/operators/emr.py$|
+          ^airflow/providers/apache/cassandra/hooks/cassandra.py$|
+          ^airflow/providers/apache/hive/operators/hive_stats.py$|
+          ^airflow/providers/apache/hive/transfers/vertica_to_hive.py$|
+          ^airflow/providers/apache/spark/hooks/|
+          ^airflow/providers/apache/spark/operators/|
+          ^airflow/providers/exasol/hooks/exasol.py$|
+          ^airflow/providers/google/cloud/hooks/bigquery.py$|
+          ^airflow/providers/google/cloud/operators/cloud_build.py$|
+          ^airflow/providers/google/cloud/operators/dataproc.py$|
+          ^airflow/providers/google/cloud/operators/mlengine.py$|
+          ^airflow/providers/microsoft/azure/hooks/cosmos.py$|
+          ^airflow/providers/microsoft/winrm/hooks/winrm.py$|
+          ^airflow/www/fab_security/manager.py$|
+          ^docs/.*commits.rst$|
+          ^docs/apache-airflow/administration-and-deployment/security/webserver.rst$|
+          ^docs/apache-airflow-providers-apache-cassandra/connections/cassandra.rst$|
+          ^airflow/providers/microsoft/winrm/operators/winrm.py$|
+          ^airflow/providers/opsgenie/hooks/opsgenie.py$|
+          ^airflow/providers/redis/provider.yaml$|
+          ^airflow/serialization/serialized_objects.py$|
+          ^airflow/utils/db.py$|
+          ^airflow/utils/trigger_rule.py$|
+          ^airflow/www/static/css/bootstrap-theme.css$|
+          ^airflow/www/static/js/types/api-generated.ts$|
+          ^airflow/www/templates/appbuilder/flash.html$|
+          ^dev/|
+          ^docs/README.rst$|
+          ^docs/apache-airflow-providers-amazon/secrets-backends/aws-ssm-parameter-store.rst$|
+          ^docs/apache-airflow-providers-apache-hdfs/connections.rst$|
+          ^docs/apache-airflow-providers-google/operators/cloud/kubernetes_engine.rst$|
+          ^docs/apache-airflow-providers-microsoft-azure/connections/azure_cosmos.rst$|
+          ^docs/conf.py$|
+          ^docs/exts/removemarktransform.py$|
+          ^scripts/ci/pre_commit/pre_commit_vendor_k8s_json_schema.py$|
+          ^tests/|
           ^.pre-commit-config\.yaml$|
           ^.*CHANGELOG\.(rst|txt)$|
           ^.*RELEASE_NOTES\.rst$|
+          ^CONTRIBUTORS_QUICK_START.rst$|
+          ^.*\.(png|gif|jp[e]?g|tgz|lock)$|
           git
       - id: check-base-operator-partial-arguments
         name: Check BaseOperator and partial() arguments
diff --git a/airflow/api_connexion/endpoints/connection_endpoint.py b/airflow/api_connexion/endpoints/connection_endpoint.py
index 40cb474bda4ea..03edf24bd887c 100644
--- a/airflow/api_connexion/endpoints/connection_endpoint.py
+++ b/airflow/api_connexion/endpoints/connection_endpoint.py
@@ -178,16 +178,16 @@ def test_connection() -> APIResponse:
     """
     Test an API connection.
 
-    This method first creates an in-memory dummy conn_id & exports that to an
+    This method first creates an in-memory transient conn_id & exports that to an
     env var, as some hook classes tries to find out the conn from their __init__ method & errors out
     if not found. It also deletes the conn id env variable after the test.
     """
     body = request.json
-    dummy_conn_id = get_random_string()
-    conn_env_var = f"{CONN_ENV_PREFIX}{dummy_conn_id.upper()}"
+    transient_conn_id = get_random_string()
+    conn_env_var = f"{CONN_ENV_PREFIX}{transient_conn_id.upper()}"
     try:
         data = connection_schema.load(body)
-        data["conn_id"] = dummy_conn_id
+        data["conn_id"] = transient_conn_id
         conn = Connection(**data)
         os.environ[conn_env_var] = conn.get_uri()
         status, message = conn.test_connection()
diff --git a/airflow/kubernetes/pod_template_file_examples/dags_in_image_template.yaml b/airflow/kubernetes/pod_template_file_examples/dags_in_image_template.yaml
index 79a4e470564cc..13b1df396f284 100644
--- a/airflow/kubernetes/pod_template_file_examples/dags_in_image_template.yaml
+++ b/airflow/kubernetes/pod_template_file_examples/dags_in_image_template.yaml
@@ -22,7 +22,7 @@
 apiVersion: v1
 kind: Pod
 metadata:
-  name: dummy-name
+  name: placeholder-name
 spec:
   containers:
     - env:
diff --git a/airflow/kubernetes/pod_template_file_examples/dags_in_volume_template.yaml b/airflow/kubernetes/pod_template_file_examples/dags_in_volume_template.yaml
index 237f14ced0820..86dd4a0ae44eb 100644
--- a/airflow/kubernetes/pod_template_file_examples/dags_in_volume_template.yaml
+++ b/airflow/kubernetes/pod_template_file_examples/dags_in_volume_template.yaml
@@ -22,7 +22,7 @@
 apiVersion: v1
 kind: Pod
 metadata:
-  name: dummy-name
+  name: placeholder-name
 spec:
   containers:
     - env:
diff --git a/airflow/kubernetes_executor_templates/basic_template.yaml b/airflow/kubernetes_executor_templates/basic_template.yaml
index 579857a2443c1..c9599bc7051cb 100644
--- a/airflow/kubernetes_executor_templates/basic_template.yaml
+++ b/airflow/kubernetes_executor_templates/basic_template.yaml
@@ -18,14 +18,14 @@
 kind: Pod
 apiVersion: v1
 metadata:
-  name: dummy-name-dont-delete
-  namespace: dummy-name-dont-delete
+  name: placeholder-name-dont-delete
+  namespace: placeholder-name-dont-delete
   labels:
     mylabel: foo
 spec:
   containers:
     - name: base
-      image: dummy-name-dont-delete
+      image: placeholder-name-dont-delete
       env:
         - name: AIRFLOW__CORE__EXECUTOR
           value: LocalExecutor
diff --git a/airflow/providers/cncf/kubernetes/decorators/kubernetes.py b/airflow/providers/cncf/kubernetes/decorators/kubernetes.py
index 844d5300f56d9..58ae6342535d3 100644
--- a/airflow/providers/cncf/kubernetes/decorators/kubernetes.py
+++ b/airflow/providers/cncf/kubernetes/decorators/kubernetes.py
@@ -73,7 +73,7 @@ def __init__(self, namespace: str = "default", use_dill: bool = False, **kwargs)
         super().__init__(
             namespace=namespace,
             name=kwargs.pop("name", f"k8s_airflow_pod_{uuid.uuid4().hex}"),
-            cmds=["dummy-command"],
+            cmds=["placeholder-command"],
             **kwargs,
         )
 
diff --git a/airflow/providers/docker/decorators/docker.py b/airflow/providers/docker/decorators/docker.py
index dd02e5afc0a5e..96e741d45e78f 100644
--- a/airflow/providers/docker/decorators/docker.py
+++ b/airflow/providers/docker/decorators/docker.py
@@ -90,7 +90,7 @@ def __init__(
         expect_airflow: bool = True,
         **kwargs,
     ) -> None:
-        command = "dummy command"
+        command = "placeholder command"
         self.python_command = python_command
         self.expect_airflow = expect_airflow
         self.pickling_library = dill if use_dill else pickle
diff --git a/airflow/providers/google/cloud/hooks/bigquery.py b/airflow/providers/google/cloud/hooks/bigquery.py
index 83422eecde2a9..fe79673242079 100644
--- a/airflow/providers/google/cloud/hooks/bigquery.py
+++ b/airflow/providers/google/cloud/hooks/bigquery.py
@@ -240,8 +240,8 @@ def get_pandas_df(
         query. The DbApiHook method must be overridden because Pandas
         doesn't support PEP 249 connections, except for SQLite. See:
 
-        https://github.com/pydata/pandas/blob/master/pandas/io/sql.py#L447
-        https://github.com/pydata/pandas/issues/6900
+        https://github.com/pandas-dev/pandas/blob/055d008615272a1ceca9720dc365a2abd316f353/pandas/io/sql.py#L415
+        https://github.com/pandas-dev/pandas/issues/6900
 
         :param sql: The BigQuery SQL to execute.
         :param parameters: The parameters to render the SQL query with (not
diff --git a/airflow/providers/google/provider.yaml b/airflow/providers/google/provider.yaml
index 3326a9cb8d316..18cd69b66bdc2 100644
--- a/airflow/providers/google/provider.yaml
+++ b/airflow/providers/google/provider.yaml
@@ -434,7 +434,7 @@ integrations:
       - /docs/apache-airflow-providers-google/operators/cloud/workflows.rst
     tags: [gcp]
   - integration-name: Google LevelDB
-    external-doc-url: https://github.com/google/leveldb/blob/master/doc/index.md
+    external-doc-url: https://github.com/google/leveldb/blob/main/doc/index.md
     how-to-guide:
       - /docs/apache-airflow-providers-google/operators/leveldb/leveldb.rst
     tags: [google]
diff --git a/airflow/utils/dag_edges.py b/airflow/utils/dag_edges.py
index 9f556897596db..470b4cdaab49e 100644
--- a/airflow/utils/dag_edges.py
+++ b/airflow/utils/dag_edges.py
@@ -26,9 +26,9 @@ def dag_edges(dag: DAG):
     Create the list of edges needed to construct the Graph view.
 
     A special case is made if a TaskGroup is immediately upstream/downstream of another
-    TaskGroup or task. Two dummy nodes named upstream_join_id and downstream_join_id are
+    TaskGroup or task. Two proxy nodes named upstream_join_id and downstream_join_id are
     created for the TaskGroup. Instead of drawing an edge onto every task in the TaskGroup,
-    all edges are directed onto the dummy nodes. This is to cut down the number of edges on
+    all edges are directed onto the proxy nodes. This is to cut down the number of edges on
     the graph.
 
     For example: A DAG with TaskGroups group1 and group2:
diff --git a/airflow/utils/task_group.py b/airflow/utils/task_group.py
index eb63f831c06f8..c58eec3ec37da 100644
--- a/airflow/utils/task_group.py
+++ b/airflow/utils/task_group.py
@@ -375,7 +375,7 @@ def child_id(self, label):
     @property
     def upstream_join_id(self) -> str:
         """
-        If this TaskGroup has immediate upstream TaskGroups or tasks, a dummy node called
+        If this TaskGroup has immediate upstream TaskGroups or tasks, a proxy node called
         upstream_join_id will be created in Graph view to join the outgoing edges from this
         TaskGroup to reduce the total number of edges needed to be displayed.
         """
@@ -384,7 +384,7 @@ def upstream_join_id(self) -> str:
     @property
     def downstream_join_id(self) -> str:
         """
-        If this TaskGroup has immediate downstream TaskGroups or tasks, a dummy node called
+        If this TaskGroup has immediate downstream TaskGroups or tasks, a proxy node called
         downstream_join_id will be created in Graph view to join the outgoing edges from this
         TaskGroup to reduce the total number of edges needed to be displayed.
         """
diff --git a/chart/files/pod-template-file.kubernetes-helm-yaml b/chart/files/pod-template-file.kubernetes-helm-yaml
index 8d305c5c904d3..b7a5a1cd5eac8 100644
--- a/chart/files/pod-template-file.kubernetes-helm-yaml
+++ b/chart/files/pod-template-file.kubernetes-helm-yaml
@@ -23,7 +23,7 @@
 apiVersion: v1
 kind: Pod
 metadata:
-  name: dummy-name
+  name: placeholder-name
   labels:
     tier: airflow
     component: worker
diff --git a/chart/values.schema.json b/chart/values.schema.json
index 12ab8a99b03b9..34a438c382243 100644
--- a/chart/values.schema.json
+++ b/chart/values.schema.json
@@ -5242,7 +5242,7 @@
             "x-docsSection": "Airflow",
             "default": null,
             "examples": [
-                "apiVersion: v1\nkind: Pod\nmetadata:\n  name: dummy-name\n  labels:\n    tier: airflow\n    component: worker\n    release: {{ .Release.Name }}\nspec:\n  priorityClassName: high-priority\n  containers:\n    - name: base\n    ..."
+                "apiVersion: v1\nkind: Pod\nmetadata:\n  name: placeholder-name\n  labels:\n    tier: airflow\n    component: worker\n    release: {{ .Release.Name }}\nspec:\n  priorityClassName: high-priority\n  containers:\n    - name: base\n    ..."
             ]
         },
         "dags": {
diff --git a/chart/values.yaml b/chart/values.yaml
index a9c697d678fcf..419b8cb317ac1 100644
--- a/chart/values.yaml
+++ b/chart/values.yaml
@@ -1840,7 +1840,7 @@ podTemplate: ~
 #   apiVersion: v1
 #   kind: Pod
 #   metadata:
-#     name: dummy-name
+#     name: placeholder-name
 #     labels:
 #       tier: airflow
 #       component: worker
diff --git a/docs/apache-airflow-providers-google/operators/leveldb/leveldb.rst b/docs/apache-airflow-providers-google/operators/leveldb/leveldb.rst
index 5c8a745e88105..2a4f8b41b3167 100644
--- a/docs/apache-airflow-providers-google/operators/leveldb/leveldb.rst
+++ b/docs/apache-airflow-providers-google/operators/leveldb/leveldb.rst
@@ -48,5 +48,5 @@ Reference
 
 For further information, look at:
 
-* `Product Documentation <https://github.com/google/leveldb/blob/master/doc/index.md>`__
+* `Product Documentation <https://github.com/google/leveldb/blob/main/doc/index.md>`__
 * `Client Library Documentation <https://plyvel.readthedocs.io/en/latest/>`__
diff --git a/docs/apache-airflow/authoring-and-scheduling/plugins.rst b/docs/apache-airflow/authoring-and-scheduling/plugins.rst
index 7c1ebb03b0dee..879ca619b1ae6 100644
--- a/docs/apache-airflow/authoring-and-scheduling/plugins.rst
+++ b/docs/apache-airflow/authoring-and-scheduling/plugins.rst
@@ -161,7 +161,7 @@ Make sure you restart the webserver and scheduler after making changes to plugin
 Example
 -------
 
-The code below defines a plugin that injects a set of dummy object
+The code below defines a plugin that injects a set of illustrative object
 definitions in Airflow.
 
 .. code-block:: python
diff --git a/docs/apache-airflow/authoring-and-scheduling/timezone.rst b/docs/apache-airflow/authoring-and-scheduling/timezone.rst
index fac290442c8a0..1beede69a20e6 100644
--- a/docs/apache-airflow/authoring-and-scheduling/timezone.rst
+++ b/docs/apache-airflow/authoring-and-scheduling/timezone.rst
@@ -96,7 +96,7 @@ words if you have a default time zone setting of ``Europe/Amsterdam`` and create
         start_date=pendulum.datetime(2017, 1, 1, tz="UTC"),
         default_args={"retries": 3},
     )
-    op = BashOperator(task_id="dummy", bash_command="Hello World!", dag=dag)
+    op = BashOperator(task_id="hello_world", bash_command="Hello World!", dag=dag)
     print(op.retries)  # 3
 
 Unfortunately, during DST transitions, some datetimes don't exist or are ambiguous.
diff --git a/docs/apache-airflow/best-practices.rst b/docs/apache-airflow/best-practices.rst
index db9189a15542a..190378c042b46 100644
--- a/docs/apache-airflow/best-practices.rst
+++ b/docs/apache-airflow/best-practices.rst
@@ -690,7 +690,7 @@ A *better* way (though it's a bit more manual) is to use the ``dags pause`` comm
 Add "integration test" DAGs
 ---------------------------
 
-It can be helpful to add a couple "integration test" DAGs that use all the common services in your ecosystem (e.g. S3, Snowflake, Vault) but with dummy resources or "dev" accounts.  These test DAGs can be the ones you turn on *first* after an upgrade, because if they fail, it doesn't matter and you can revert to your backup without negative consequences.  However, if they succeed, they should prove that your cluster is able to run tasks with the libraries and services that you need to use.
+It can be helpful to add a couple "integration test" DAGs that use all the common services in your ecosystem (e.g. S3, Snowflake, Vault) but with test resources or "dev" accounts.  These test DAGs can be the ones you turn on *first* after an upgrade, because if they fail, it doesn't matter and you can revert to your backup without negative consequences.  However, if they succeed, they should prove that your cluster is able to run tasks with the libraries and services that you need to use.
 
 For example, if you use an external secrets backend, make sure you have a task that retrieves a connection.  If you use KubernetesPodOperator, add a task that runs ``sleep 30; echo "hello"``.  If you need to write to s3, do so in a test task.  And if you need to access a database, add a task that does ``select 1`` from the server.
 
diff --git a/docs/apache-airflow/core-concepts/dags.rst b/docs/apache-airflow/core-concepts/dags.rst
index 918e866057db3..dbc5175d10836 100644
--- a/docs/apache-airflow/core-concepts/dags.rst
+++ b/docs/apache-airflow/core-concepts/dags.rst
@@ -258,7 +258,7 @@ Often, many Operators inside a DAG need the same set of default arguments (such
         schedule="@daily",
         default_args={"retries": 2},
     ):
-        op = BashOperator(task_id="dummy", bash_command="Hello World!")
+        op = BashOperator(task_id="hello_world", bash_command="Hello World!")
         print(op.retries)  # 2
 
 
diff --git a/docs/apache-airflow/core-concepts/params.rst b/docs/apache-airflow/core-concepts/params.rst
index 1ac48bc065de8..0a255778fcf9b 100644
--- a/docs/apache-airflow/core-concepts/params.rst
+++ b/docs/apache-airflow/core-concepts/params.rst
@@ -139,7 +139,7 @@ JSON Schema Validation
 
             # a required param which can be of multiple types
             # a param must have a default value
-            "dummy": Param(5, type=["null", "number", "string"]),
+            "multi_type_param": Param(5, type=["null", "number", "string"]),
 
             # an enum param, must be one of three values
             "enum_param": Param("foo", enum=["foo", "bar", 42]),
diff --git a/docs/apache-airflow/howto/connection.rst b/docs/apache-airflow/howto/connection.rst
index 9792d6faaa5cf..9b0e127f14921 100644
--- a/docs/apache-airflow/howto/connection.rst
+++ b/docs/apache-airflow/howto/connection.rst
@@ -214,7 +214,7 @@ for description on how to add custom providers.
 
 The custom connection types are defined via Hooks delivered by the providers. The Hooks can implement
 methods defined in the protocol class :class:`~airflow.hooks.base_hook.DiscoverableHook`. Note that your
-custom Hook should not derive from this class, this class is a dummy example to document expectations
+custom Hook should not derive from this class, this class is an example to document expectations
 regarding about class fields and methods that your Hook might define. Another good example is
 :py:class:`~airflow.providers.jdbc.hooks.jdbc.JdbcHook`.
 
diff --git a/docs/apache-airflow/tutorial/fundamentals.rst b/docs/apache-airflow/tutorial/fundamentals.rst
index 3feaad92cfc48..069de57790ea6 100644
--- a/docs/apache-airflow/tutorial/fundamentals.rst
+++ b/docs/apache-airflow/tutorial/fundamentals.rst
@@ -393,7 +393,7 @@ which are used to populate the run schedule with task instances from this DAG.
 What's Next?
 -------------
 That's it! You have written, tested and backfilled your very first Airflow
-pipeline. Merging your code into a repository that has a master scheduler
+pipeline. Merging your code into a repository that has a Scheduler
 running against it should result in being triggered and run every day.
 
 Here are a few things you might want to do next:
diff --git a/docs/helm-chart/customizing-workers.rst b/docs/helm-chart/customizing-workers.rst
index 9e23bf42b8ff0..8c934bd319f29 100644
--- a/docs/helm-chart/customizing-workers.rst
+++ b/docs/helm-chart/customizing-workers.rst
@@ -57,7 +57,7 @@ As an example, let's say you want to set ``priorityClassName`` on your workers:
     apiVersion: v1
     kind: Pod
     metadata:
-      name: dummy-name
+      name: placeholder-name
       labels:
         tier: airflow
         component: worker
diff --git a/scripts/in_container/check_environment.sh b/scripts/in_container/check_environment.sh
index 858f804061b5a..8e6b975965205 100755
--- a/scripts/in_container/check_environment.sh
+++ b/scripts/in_container/check_environment.sh
@@ -116,7 +116,7 @@ function startairflow_if_requested() {
         . "$( dirname "${BASH_SOURCE[0]}" )/configure_environment.sh"
 
         airflow db init
-        airflow users create -u admin -p admin -f Thor -l Adminstra -r Admin -e dummy@dummy.email
+        airflow users create -u admin -p admin -f Thor -l Adminstra -r Admin -e admin@email.domain
 
         . "$( dirname "${BASH_SOURCE[0]}" )/run_init_script.sh"
 
