To make someone believe, or feel sure about something, especially by using logic, argument or evidence.
I wouldn't have or do something, unless I'm convinced that it's good.
To persuade.
To overcome, conquer, vanquish.
To confute; to prove wrong.
To prove guilty; to convict.
In a state of believing, especially from evidence but not necessarily.
He was convinced he was a great singer, statements of others to the contrary.