worry

ensure, reassure, guarantee, convince, safeguard, remind, insure, protect, insist, maintain, inform, implore, secure, emphasize, prove, advise, presume, believe, allay, assert, facilitate, urge, reestablish, apprise, enure, establish, attest, assume, achieve, jeopardize, reemphasize, satisfy, reiterate, deprive, stressing, reaffirm, demonstrate, undermine, disabuse, restore, proclaim, determine, commend, assuage, verify, persuade, know, tell, ascertain, encourage, understand, make, affirm, warn, prevent, embarrass, acquaint, uphold, certify, preserve, acknowledge, minimize, provide, pretend, maximize, reconfirm, keep, expedite, confirm, enhance, attain, say, preordain, ingratiate, conclude, educate, clarify, pray, delude, enable, forestall, sustain, forewarn, bring, hope, congratulate, thank, surmise, instill, appreciate, absolve, strive, engender, mitigate, declare, prejudge, reeducate, mislead, insinuate, vouch, shortchange, suggest

card, cinch, contract, control, cross-check, double-check, go back on, guarantee, make, pledge, plight, reassure, renege, renege on, renegue on, spot-check, swear off, undertake

make, registered, registered mail, registered post, secure

affirm, assert, aver, avow, calm, calm down, declare, lull, persuade, quiet, quieten, still, swan, swear, tranquilize, tranquillize, verify

ascertain, check, control, ensure, guarantee, insure, promise, reassure, secure, see, see to it, tell