diff --git a/doc/source/command-objects/ec2-credentials.rst b/doc/source/command-objects/ec2-credentials.rst
index d675dc8c1..f8e385648 100644
--- a/doc/source/command-objects/ec2-credentials.rst
+++ b/doc/source/command-objects/ec2-credentials.rst
@@ -20,22 +20,22 @@ Create EC2 credentials
 
 .. option:: --project <project>
 
-    Specify an alternate project (default: current authenticated project)
+    Create credentials in project (name or ID; default: current authenticated project)
 
 .. option:: --user <user>
 
-    Specify an alternate user (default: current authenticated user)
+    Create credentials for user (name or ID; default: current authenticated user)
 
 .. option:: --user-domain <user-domain>
 
-    Domain the user belongs to (name or ID).
+    Select user from a specific domain (name or ID)
     This can be used in case collisions between user names exist.
 
     .. versionadded:: 3
 
 .. option:: --project-domain <project-domain>
 
-    Domain the project belongs to (name or ID).
+    Select project from a specific domain (name or ID)
     This can be used in case collisions between project names exist.
 
     .. versionadded:: 3
@@ -60,11 +60,11 @@ Delete EC2 credentials
 
 .. option:: --user <user>
 
-    Specify a user
+    Delete credentials for user (name or ID)
 
 .. option:: --user-domain <user-domain>
 
-    Domain the user belongs to (name or ID).
+    Select user from a specific domain (name or ID)
     This can be used in case collisions between user names exist.
 
     .. versionadded:: 3
@@ -92,11 +92,11 @@ List EC2 credentials
 
 .. option:: --user <user>
 
-    Filter list by <user>
+    Filter list by <user> (name or ID)
 
 .. option:: --user-domain <user-domain>
 
-    Domain the user belongs to (name or ID).
+    Select user from a specific domain (name or ID)
     This can be used in case collisions between user names exist.
 
     .. versionadded:: 3
@@ -120,11 +120,11 @@ Display EC2 credentials details
 
 .. option:: --user <user>
 
-    Specify a user
+    Show credentials for user (name or ID)
 
 .. option:: --user-domain <user-domain>
 
-    Domain the user belongs to (name or ID).
+    Select user from a specific domain (name or ID)
     This can be used in case collisions between user names exist.
 
     .. versionadded:: 3
diff --git a/openstackclient/identity/v2_0/ec2creds.py b/openstackclient/identity/v2_0/ec2creds.py
index 90553eb1f..348479ac3 100644
--- a/openstackclient/identity/v2_0/ec2creds.py
+++ b/openstackclient/identity/v2_0/ec2creds.py
@@ -37,14 +37,18 @@ class CreateEC2Creds(show.ShowOne):
         parser.add_argument(
             '--project',
             metavar='<project>',
-            help=_('Specify an alternate project'
-                   ' (default: current authenticated project)'),
+            help=_(
+                'Create credentials in project '
+                '(name or ID; default: current authenticated project)'
+            ),
         )
         parser.add_argument(
             '--user',
             metavar='<user>',
-            help=_('Specify an alternate user'
-                   ' (default: current authenticated user)'),
+            help=_(
+                'Create credentials for user '
+                '(name or ID; default: current authenticated user)'
+            ),
         )
         return parser
 
@@ -97,7 +101,7 @@ class DeleteEC2Creds(command.Command):
         parser.add_argument(
             '--user',
             metavar='<user>',
-            help=_('Specify a user'),
+            help=_('Delete credentials for user (name or ID)'),
         )
         return parser
 
@@ -127,7 +131,7 @@ class ListEC2Creds(lister.Lister):
         parser.add_argument(
             '--user',
             metavar='<user>',
-            help=_('Specify a user'),
+            help=_('Filter list by user (name or ID)'),
         )
         return parser
 
@@ -170,7 +174,7 @@ class ShowEC2Creds(show.ShowOne):
         parser.add_argument(
             '--user',
             metavar='<user>',
-            help=_('Specify a user'),
+            help=_('Show credentials for user (name or ID)'),
         )
         return parser
 
diff --git a/openstackclient/identity/v3/ec2creds.py b/openstackclient/identity/v3/ec2creds.py
index c49502c68..f995ae555 100644
--- a/openstackclient/identity/v3/ec2creds.py
+++ b/openstackclient/identity/v3/ec2creds.py
@@ -62,28 +62,36 @@ class CreateEC2Creds(show.ShowOne):
         parser.add_argument(
             '--project',
             metavar='<project>',
-            help=_('Specify an alternate project'
-                   ' (default: current authenticated project)'),
+            help=_(
+                'Create credentials in project '
+                '(name or ID; default: current authenticated project)'
+            ),
         )
         parser.add_argument(
             '--user',
             metavar='<user>',
-            help=_('Specify an alternate user'
-                   ' (default: current authenticated user)'),
+            help=_(
+                'Create credentials for user '
+                '(name or ID; default: current authenticated user)'
+            ),
         )
         parser.add_argument(
             '--user-domain',
             metavar='<user-domain>',
-            help=('Domain the user belongs to (name or ID). '
-                  'This can be used in case collisions between user names '
-                  'exist.')
+            help=(
+                'Select user from a specific domain (name or ID); '
+                'This can be used in case collisions between user names '
+                'exist.'
+            ),
         )
         parser.add_argument(
             '--project-domain',
             metavar='<project-domain>',
-            help=('Domain the project belongs to (name or ID). '
-                  'This can be used in case collisions between project names '
-                  'exist.')
+            help=(
+                'Select project from a specific domain (name or ID); '
+                'This can be used in case collisions between project names '
+                'exist.'
+            ),
         )
         return parser
 
@@ -139,14 +147,16 @@ class DeleteEC2Creds(command.Command):
         parser.add_argument(
             '--user',
             metavar='<user>',
-            help=_('Specify a user'),
+            help=_('Delete credentials for user (name or ID)'),
         )
         parser.add_argument(
             '--user-domain',
             metavar='<user-domain>',
-            help=('Domain the user belongs to (name or ID). '
-                  'This can be used in case collisions between user names '
-                  'exist.')
+            help=(
+                'Select user from a specific domain (name or ID); '
+                'This can be used in case collisions between user names '
+                'exist.'
+            ),
         )
         return parser
 
@@ -167,14 +177,16 @@ class ListEC2Creds(lister.Lister):
         parser.add_argument(
             '--user',
             metavar='<user>',
-            help=_('Specify a user'),
+            help=_('Filter list by user (name or ID)'),
         )
         parser.add_argument(
             '--user-domain',
             metavar='<user-domain>',
-            help=('Domain the user belongs to (name or ID). '
-                  'This can be used in case collisions between user names '
-                  'exist.')
+            help=(
+                'Select user from a specific domain (name or ID); '
+                'This can be used in case collisions between user names '
+                'exist.'
+            ),
         )
         return parser
 
@@ -209,14 +221,16 @@ class ShowEC2Creds(show.ShowOne):
         parser.add_argument(
             '--user',
             metavar='<user>',
-            help=_('Specify a user'),
+            help=_('Show credentials for user (name or ID)'),
         )
         parser.add_argument(
             '--user-domain',
             metavar='<user-domain>',
-            help=('Domain the user belongs to (name or ID). '
-                  'This can be used in case collisions between user names '
-                  'exist.')
+            help=(
+                'Select user from a specific domain (name or ID); '
+                'This can be used in case collisions between user names '
+                'exist.'
+            ),
         )
         return parser