Synonyms for Give go-ahead:

• v.

  •accede (verb)
  • cave in,
  • admit,
  • enter into,
  • roll over and play dead,
  • comply,
  • fold,
  • give the green light,
  • give the go-ahead,
  • concede,
  • throw in the towel,
  • be game for,
  • grant,
  • cry uncle,
  • subscribe,
  • allow,
  • play ball,
  • let,
  • cooperate,
  • yield.
  •accept (verb)
  • approve,
  • acknowledge,
  • concur with,
  • take one up on,
  • assume,
  • check out,
  • set store by,
  • give the nod,
  • avow,
  • undertake,
  • give stamp of approval,
  • go for,
  • rubber-stamp,
  • take on,
  • adopt,
  • cooperate with,
  • recognize,
  • bear,
  • agree to.
  •agree (verb)
  • pass on,
  • settle,
  • clinch the deal,
  • side with,
  • set,
  • make a deal,
  • give carte blanche,
  • cut a deal,
  • give green light,
  • bury the hatchet,
  • check,
  • shake on,
  • see eye to eye,
  • be of the same mind,
  • engage,
  • give blessing,
  • yes,
  • come to terms.
  •allow (verb)
  • endure,
  • release,
  • live with,
  • take kindly to,
  • stand,
  • tolerate,
  • put up with,
  • favor,
  • give a blank check,
  • oblige,
  • hear of,
  • suffer,
  • grant permission,
  • hold with,
  • free up,
  • give permission,
  • warrant,
  • be big,
  • indulge,
  • sit still for,
  • brook,
  • give leave,
  • pass,
  • commission.
  •approve (verb)
  • affirm,
  • accredit,
  • endorse,
  • make law,
  • encourage,
  • accept,
  • maintain,
  • stump for,
  • subscribe to,
  • sign off on,
  • consent,
  • empower,
  • recommend,
  • lap up,
  • mandate,
  • get behind,
  • certify,
  • bless,
  • uphold,
  • push for,
  • concur,
  • accede,
  • ratify,
  • advocate,
  • buy into,
  • sanction,
  • establish,
  • charter,
  • hats off to,
  • permit,
  • back,
  • groove,
  • seal,
  • support,
  • thumbs up,
  • second,
  • acquiesce,
  • license,
  • authorize,
  • okay,
  • dig,
  • agree,
  • assent,
  • make valid,
  • validate,
  • confirm,
  • pronounce,
  • go along with,
  • boost,
  • sign,
  • buy.
  •authorize (verb)
  • entitle,
  • enable,
  • say the word,
  • vest,
  • give authority,
  • invest,
  • give the word.
  •confirm (verb)
  • bear out,
  • debunk,
  • substantiate,
  • justify,
  • corroborate,
  • witness,
  • verify,
  • give high sign,
  • vouch,
  • double-check,
  • attest,
  • make sure,
  • circumstantiate,
  • size up,
  • authenticate,
  • underpin,
  • explain,
  • make good.
  •endorse (verb)
  • commend,
  • go with,
  • stand behind,
  • praise,
  • defend,
  • give a boost to,
  • go to bat for,
  • lend one's name to,
  • vouch for,
  • give one's word,
  • back up,
  • sustain,
  • countenance,
  • underwrite,
  • champion,
  • stand up for,
  • guarantee,
  • push.
  •okay (verb)
  • say yes to,
  • ok,
  • condone,
  • consent to,
  • give one's consent,
  • notarize.
  •validate (verb)
  • John Hancock,
  • make legal,
  • make stick,
  • legalize,
  • make binding,
  • legitimize,
  • constitute,
  • set seal on.

• Other synonyms:

  •approve
  • grooving,
  • subscribed to,
  • signed on,
  • grooved,
  • gets behind,
  • lapped up,
  • Upheld,
  • signing on,
  • mandating.

Antonyms for Give go-ahead:

• v.

  • accede
    denounce, hold, impede, repel, obstruct, forbid, demur, hinder, resist, prevent, keep.
  • accept
    discard, blackball.
  • agree
    contend.
  • allow
    prohibit, Unauthorize, withhold, withstand.
  • approve
    decline, disapprove, dispute, disagree, object, condemn, dissent, veto, refuse, disprove, destroy, oppose, protest, discourage, repudiate, reject, deny, invalidate, differ, renounce, disallow, dissuade, contradict.
  • confirm
    void, discredit, annul, confuse, refute, cancel.
  • endorse
    attack, halt, censure, criticize.
  • sanction
    revoke.