comment

(noun) a statement that expresses a personal opinion or belief or adds information. Synonyms: remark, input. Example: "From time to time she contributed a personal comment on his account."

(noun) a written explanation or criticism or illustration that is added to a book or other textual material. Synonyms: commentary. Example: "He wrote an extended comment on the proposal."

(noun) a report (often malicious) about the behavior of other people. Synonyms: gossip, scuttlebutt. Example: "The divorce caused much gossip."

(verb) make or write a comment on. Synonyms: notice, remark, point out. Example: "He commented the paper of his colleague."

(verb) explain or interpret something.

(verb) provide interlinear explanations for words or phrases. Synonyms: gloss, annotate. Example: "He annotated on what his teacher had written."