Synonyms for Put in two cents:

• v.

  •advise (verb)
  • encourage,
  • steer,
  • dissuade,
  • give a pointer,
  • direct,
  • level with,
  • guide,
  • opine,
  • give a tip,
  • preach,
  • tout,
  • admonish,
  • warn,
  • prompt,
  • caution,
  • urge,
  • exhort,
  • prepare,
  • point out,
  • prescribe,
  • instruct,
  • move,
  • advocate,
  • put bug in ear,
  • kibitz,
  • commend,
  • update,
  • counsel,
  • Forewarn,
  • charge,
  • enjoin,
  • recommend.
  •contribute (verb)
  • assist,
  • conduce,
  • lead,
  • redound,
  • strengthen,
  • help,
  • add to,
  • aid,
  • augment,
  • advance,
  • supplement,
  • support,
  • reinforce,
  • uphold,
  • tend.
  •intervene (verb)
  • interfere,
  • meddle,
  • reconcile,
  • sever,
  • intermediate,
  • separate,
  • intrude,
  • horn in,
  • butt in,
  • take a hand,
  • intercede,
  • barge in,
  • obtrude,
  • step in,
  • divide,
  • muscle in,
  • part,
  • mix in,
  • involve,
  • interpose,
  • come between,
  • negotiate,
  • settle,
  • arbitrate,
  • interrupt.
  •suggest (verb)
  • conjecture,
  • submit,
  • prefer,
  • theorize,
  • tip,
  • propose,
  • propound,
  • pose,
  • put,
  • proposition,
  • broach,
  • plug,
  • offer.

• Other synonyms:

  •advise
  • Forewarned,
  • give pointer,
  • kibitzing,
  • pointed out,
  • moves,
  • pointing out.
  •intervene
  • intervenes,
  • intermediated,
  • intermediating,
  • mixed in,
  • intermediates.
  •mediate
  • intervene.

Antonyms for Put in two cents:

• v.

  • advise
    disapprove, dissuade, keep mum, keep quiet, neglect, fool, betray, delude, discourage, deceive, pretend, stop, lie, keep secret, trick.
  • contribute
    hinder, take, counteract, shun, hurt, withhold, oppose, withdraw, subtract, injure, take away, decrease, harm, weaken.
  • intervene
    combine, leave, connect, unite, join, ignore, leave alone.
  • suggest
    demand, deny, hide, refuse, tell, declare, prove, conceal, order.