Comment definition

(1) A written explanation or criticism or illustration that is added to a book or other textual material

"He wrote an extended comment on the proposal"

(2) A statement that expresses a personal opinion or belief

"From time to time she contributed a personal comment on his account"

(3) A report (often malicious) about the behavior of other people

"The divorce caused much gossip"

(4) Provide interlinear explanations for words or phrases

"He annotated on what his teacher had written"

(5) Make or write a comment on

"He commented the paper of his colleague"