React and Comment

verb

• Show a response or a reaction to something.
  • synonyms: respond
• Act against or in opposition to.
  • usage: "She reacts negatively to everything I say"
  • synonyms: oppose
• Undergo a chemical reaction; react with another substance under certain conditions.
  • usage: "The hydrogen and the oxygen react"

• (v.t.) To act or perform a second time; to do over again; as, to react a play; the same scenes were reacted at Rome.
• (v.i.) To act upon each other; to exercise a reciprocal or a reverse effect, as two or more chemical agents; to act in opposition.
• (v.i.) To return an impulse or impression; to resist the action of another body by an opposite force; as, every body reacts on the body that impels it from its natural state.

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

• (v.i.) To make remarks, observations or criticism; especially, to write notes on the works of an author, with a view to illustrate his meaning or to explain particular passages; to write annotations; -- often followed by on or upon.
• (v.t.) To comment on.
• (n.) A remark, observation or criticism; gossip; discourse; talk.
• (n.) A note or observation intended to explain, illustrate or criticise the meaning of a writing, book, etc.; explanation; annotation; exposition.