[DOCS] Deletes unnecessary files and synchs terminology

x-pack/docs/en/rest-api/security.asciidoc

@@ -9,46 +9,60 @@ You can use the following APIs to perform {security} activities.
 * <<security-api-has-privileges>>
 * <<security-api-ssl>>
 
-include::security/app-privileges.asciidoc[]
-
 [float]
-[[security-role-apis]]
-=== Roles
+[[security-api-app-privileges]]
+=== Application privileges
 
-You can use the following APIs to add, remove, and retrieve roles in the native realm:
+You can use the following APIs to add, update, retrieve, and remove application 
+privileges:
 
-* <<security-api-put-role,Create role>>, <<security-api-delete-role,Delete role>>
-* <<security-api-clear-role-cache,Clear roles cache>>
-* <<security-api-get-role,Get roles>>
+* <<security-api-put-privileges,Create or update privileges>> 
+* <<security-api-delete-privilege,Delete privileges>>
+* <<security-api-get-privileges,Get privileges>>
 
 [float]
 [[security-role-mapping-apis]]
 === Role mappings
 
-You can use the following APIs to add, remove, and retrieve role mappings:
+You can use the following APIs to add, remove, update, and retrieve role mappings:
 
-* <<security-api-put-role-mapping,Add role mappings>>, <<security-api-delete-role-mapping,Delete role mappings>>
+* <<security-api-put-role-mapping,Create or update role mappings>> 
+* <<security-api-delete-role-mapping,Delete role mappings>>
 * <<security-api-get-role-mapping,Get role mappings>>
 
+[float]
+[[security-role-apis]]
+=== Roles
+
+You can use the following APIs to add, remove, update, and retrieve roles in the native realm:
+
+* <<security-api-put-role,Create or update roles>>
+* <<security-api-clear-role-cache,Clear roles cache>>
+* <<security-api-delete-role,Delete roles>>
+* <<security-api-get-role,Get roles>>
+
 [float]
 [[security-token-apis]]
 === Tokens
 
 You can use the following APIs to create and invalidate bearer tokens for access
 without requiring basic authentication:
 
-* <<security-api-get-token,Get token>>, <<security-api-invalidate-token,Invalidate token>>
+* <<security-api-get-token,Get token>>
+* <<security-api-invalidate-token,Invalidate token>>
 
 [float]
 [[security-user-apis]]
 === Users
 
-You can use the following APIs to create, read, update, and delete users from the
+You can use the following APIs to add, remove, update, or retrieve users in the
 native realm:
 
-* <<security-api-put-user,Create users>>, <<security-api-delete-user,Delete users>>
-* <<security-api-enable-user,Enable users>>, <<security-api-disable-user,Disable users>>
+* <<security-api-put-user,Create or update users>>
 * <<security-api-change-password,Change passwords>>
+* <<security-api-delete-user,Delete users>>
+* <<security-api-disable-user,Disable users>>
+* <<security-api-enable-user,Enable users>>
 * <<security-api-get-user,Get users>>
 
 

x-pack/docs/en/rest-api/security/create-role-mappings.asciidoc

@@ -1,8 +1,8 @@
 [role="xpack"]
 [[security-api-put-role-mapping]]
-=== Add role mappings API
+=== Create or update role mappings API
 
-Adds and updates role mappings.
+Creates and updates role mappings.
 
 ==== Request
 

x-pack/docs/en/rest-api/security/create-roles.asciidoc

@@ -1,8 +1,8 @@
 [role="xpack"]
 [[security-api-put-role]]
-=== Create roles API
+=== Create or update roles API
 
-Adds roles in the native realm.
+Adds and updates roles in the native realm.
 
 ==== Request
 

x-pack/docs/en/rest-api/security/create-users.asciidoc

@@ -1,8 +1,8 @@
 [role="xpack"]
 [[security-api-put-user]]
-=== Create users API
+=== Create or update users API
 
-Creates and updates users in the native realm. These users are commonly referred 
+Adds and updates users in the native realm. These users are commonly referred 
 to as _native users_.
 
 

x-pack/docs/en/rest-api/security/put-app-privileges.asciidoc

@@ -1,8 +1,8 @@
 [role="xpack"]
 [[security-api-put-privileges]]
-=== Add application privileges API
+=== Create or update application privileges API
 
-Creates or updates 
+Adds or updates 
 {stack-ov}/security-privileges.html#application-privileges[application privileges].
 
 ==== Request