What is the meaning of comment?

noun

• A statement that expresses a personal opinion or belief or adds information.
  • usage: "from time to time she contributed a personal comment on his account"
  • synonyms: remark, input
• A written explanation or criticism or illustration that is added to a book or other textual material.
  • usage: "he wrote an extended comment on the proposal"
  • synonyms: commentary
• A report (often malicious) about the behavior of other people.
  • usage: "the divorce caused much gossip"
  • synonyms: gossip, scuttlebutt

verb

• Make or write a comment on.
  • usage: "he commented the paper of his colleague"
  • synonyms: notice, remark, point out
• Explain or interpret something.
• Provide interlinear explanations for words or phrases.
  • usage: "He annotated on what his teacher had written"
  • synonyms: gloss, annotate