Earlier quoted context omitted.
Not really, Ok can be a verb. You can “Ok” a change.
"Ok" for a change (that's described in the body of the dialog's text) is... okay, I suppose. But it's better to mirror the action verb for your confirmation button, because users don't necessarily read the text you present them with. So, instead of this: Delete xyz.jpg? -------------------------- The file 'xyz.jpg' will be permanently deleted. -------------------------- [ OK ] [ Cancel ] You have: Delete xyz.jpg? ---…
Delete xyz.jpg?
--------------------------
The file 'xyz.jpg' will be
permanently deleted.
--------------------------
[ Delete xyz.jpg ]
[ Keep xyz.jpg ]
Action buttons sometimes need to be single verbs for the sake of brevity. A verb-noun pair is much more legible than a standalone verb. Self-explanatory buttons are usually preferable to buttons that depend on explanatory text.