Synonyms for Give the nod:

• v.

  •accept (verb)
  • adopt,
  • okay,
  • go for,
  • acquiesce,
  • avow,
  • buy,
  • undertake,
  • recognize,
  • bear,
  • agree to,
  • comply,
  • check out,
  • sign,
  • acknowledge,
  • approve,
  • assent,
  • thumbs up,
  • take on,
  • accede,
  • affirm,
  • assume.
  •admit (verb)
  • entertain,
  • concede,
  • receive,
  • take in,
  • take,
  • let,
  • enter,
  • harbor,
  • house,
  • bless,
  • shelter,
  • lodge.
  •confirm (verb)
  • bear out,
  • uphold,
  • vouch,
  • attest,
  • warrant,
  • back,
  • verify,
  • settle,
  • certify,
  • check,
  • underpin,
  • explain,
  • corroborate,
  • justify,
  • debunk,
  • establish,
  • substantiate,
  • witness,
  • authenticate,
  • support.
  •consent (verb)
  • fold,
  • throw in the towel,
  • give in,
  • knuckle under,
  • allow,
  • give up,
  • yield,
  • say yes,
  • yes,
  • say uncle,
  • make a deal,
  • concur,
  • roll over.
  •countenance (verb)
  • abet,
  • swallow,
  • aid,
  • advocate,
  • champion,
  • condone,
  • approbate,
  • invite,
  • handle,
  • bear with,
  • help,
  • stand for,
  • put john hancock on,
  • encourage,
  • commend,
  • favor,
  • cope,
  • applaud.
  •endorse (verb)
  • back up,
  • defend,
  • guarantee,
  • boost,
  • push,
  • ratify,
  • underwrite,
  • go to bat for,
  • second,
  • accredit,
  • recommend,
  • praise,
  • vouch for,
  • sustain.
  •grant (verb)
  • allocate,
  • invest,
  • confer,
  • give,
  • surrender,
  • suppose,
  • sign on,
  • accord,
  • own,
  • award,
  • assign,
  • come across,
  • donate,
  • relinquish,
  • bestow,
  • drop,
  • profess,
  • cede,
  • impart,
  • convey,
  • allot,
  • come through,
  • transmit,
  • transfer,
  • vouchsafe,
  • present,
  • stake.
  •sanction (verb)
  • empower,
  • license,
  • commission.
  •validate (verb)
  • constitute,
  • legalize,
  • John Hancock,
  • authorize.

• Other synonyms:

  •agree
  • consent.
  •consent
  • throw in towel,
  • throwing in the towel,
  • yeses.

Antonyms for Give the nod:

• v.

  • accept
    demur, repudiate, deny, oppose, dispute, renounce, disagree, disallow, disapprove, dissent, blackball, condemn, reject, refuse, decline, protest, discard.
  • admit
    dismiss, sell, stop, abstain, turn away, debar, shut, ignore, disregard, eject, repel, gainsay, erase, give, exclude, expel, offer, veto, confute, oust.
  • confirm
    confuse, cancel, discredit, destroy, annul, contradict, refute, disprove, void, invalidate.
  • consent
    forbid, differ, hold, prevent, object, keep.
  • countenance
    criticize, censure, fight, dissuade, block, discourage, injure, hinder, obstruct, hurt.
  • endorse
    halt, Unauthorize, attack.
  • grant
    disavow, conceal, hide, withhold, take, refrain.
  • intromit
    end, finish, forget, leave, close.
  • sanction
    revoke.