React and Effect

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.

(Military) REACT stands for rapid execution and combat targeting

noun

• A phenomenon that follows and is caused by some previous phenomenon.
  • usage: "the magnetic effect was greater when the rod was lengthwise"; "his decision had depressing consequences for business"; "he acted very wise after the event"
  • synonyms: consequence, outcome, result, event, issue, upshot
• An outward appearance.
  • usage: "he made a good impression"; "I wanted to create an impression of success"; "she retained that bold effect in her reproductions of the original painting"
  • synonyms: impression
• An impression (especially one that is artificial or contrived. )
  • usage: "he just did it for effect"
• The central meaning or theme of a speech or literary work.
  • synonyms: essence, burden, core, gist
• Of a law. ( having legal validity)
  • usage: "the law is still in effect"
  • synonyms: force
• A symptom caused by an illness or a drug.
  • usage: "the effects of sleep loss"; "the effect of the anesthetic"

verb

• Produce.
  • usage: "The scientists set up a shock wave"
  • synonyms: effectuate, set up
• Act so as to bring into existence.
  • usage: "effect a change"

• (n.) Impression left on the mind; sensation produced.
• (n.) Goods; movables; personal estate; -- sometimes used to embrace real as well as personal property; as, the people escaped from the town with their effects.
• (n.) Reality; actual meaning; fact, as distinguished from mere appearance.
• (v.t.) To produce, as a cause or agent; to cause to be.
• (n.) Manifestation; expression; sign.
• (n.) In general: That which is produced by an agent or cause; the event which follows immediately from an antecedent, called the cause; result; consequence; outcome; fruit; as, the effect of luxury.
• (n.) Execution; performance; realization; operation; as, the law goes into effect in May.
• (v.t.) To bring to pass; to execute; to enforce; to achieve; to accomplish.
• (n.) Consequence intended; purpose; meaning; general intent; -- with to.
• (n.) Power to produce results; efficiency; force; importance; account; as, to speak with effect.
• (n.) The purport; the sum and substance.

(DoD) The physical or behavioral state of a system that results from an action, a set of actions, or another effect.
(DoD) The result, outcome, or consequence of an action.
(DoD) A change to a condition, behavior, or degree of freedom.