OK, accede to, accept, accord to, accredit, adopt, affiliate, affirm, agree to, amen, approve, approve of, assent, attest, authenticate, authorize, autograph, back, back up, be willing, bear out, bolster, buttress, carry, certificate, certify, charter, circumstantiate, clinch, commission, condescend, confirm, connive at, consent, consent to silently, corroborate, cosign, countersign, deign, document, embrace, empower, enable, endorse, enfranchise, ensure, entitle, espouse, establish, fortify, franchise, give consent, give official sanction, give permission, give power, give the go-ahead, give the imprimatur, give thumbs up, go along with, go in for, grant, guarantee, have no objection, hold with, initial, legalize, legitimize, license, nod, nod assent, not refuse, notarize, okay, pass, pass on, pass upon, patent, permit, privilege, probate, prove, reinforce, rubber stamp, sanction, say amen to, say aye, say yes, seal, second, settle, sign, sign and seal, strengthen, subscribe to, substantiate, support, sustain, swear and affirm, swear to, take kindly to, take up, undergird, undersign, underwrite, uphold, validate, verify, visa, vise, vote affirmatively, vote aye, warrant, wink at, yield assent
contract, covenant, agree for, engage, treat, negotiate, stipulate, make terms, bargain, make a bargain, strike a bargain, come to terms, come to an understanding, compromise, set at rest, close, close with, conclude, complete, settle, confirm, ratify
, clench, subscribe, underwrite, endorse, indorse, put the seal to, sign, seal, indent, take one at one's word, bargain by inch of candle.
be evidence, evince, show, betoken, tell of, indicate, imply, involve, argue, bespeak, breathe, have weight, carry weight, tell, speak volumes, speak for itself, rest upon, depend upon, repose on, bear witness, give evidence, testify, depose, witness, vouch for, sign, seal, undersign, set one's hand and seal, sign and seal, deliver as one's act and deed, certify, attest, acknowledge, make absolute, confirm, prove (demonstrate), indorse, countersign, corroborate, support, ratify
, bear out, uphold, warrant, adduce, attest, cite, quote, refer to, appeal to, call, call to witness, bring forward, bring into court, allege, plead, produce witnesses, confront witnesses, place into evidence, mark into evidence, collect evidence, bring together evidence, rake up evidence, experiment, have a case, make out a case, establish, authenticate, substantiate, verify, make good, quote chapter and verse, bring home to, bring to book.
assent, give assent, yield assent, nod assent, acquiesce, agree, receive, accept, accede, accord, concur, lend oneself to, consent, coincide, reciprocate, go with, be at one with, go along with, chime in with, strike in with, close in with, echo, enter into one's views, agree in opinion, vote, give one's voice for, recognize, subscribe to, conform to, defer to, say yes to, say ditto, amen to, say aye to, acknowledge, own, admit, allow, avow, confess, concede, come round to, abide by, permit, arrive at an understanding, come to an understanding, come to terms, come to an agreement, confirm, affirm, ratify
, appprove, indorse, countersign, corroborate, go with the stream, swim with the stream, go with the flow, blow with the wind, be in fashion, join in the chorus, join the crowd, be one of the guys, be part of the group, go with the crowd, don't make waves, be in every mouth.