avow

1 to state as a fact usually forcefully avowed that the colonization of Mars in our lifetime is not only possible but probable Synonyms affirm, allege, assert, aver, avouch, claim, contend, declare, insist, maintain, profess, protest, purport, warrantRelated Words announce, broadcast, proclaim; argue, rationalize, reason; confirm, justify, vindicate; defend, persevere, support, uphold; reaffirm, reassertNear Antonyms abandon; disavow, disclaim, disown, negate, negative, reject, repudiate; challenge, dispute, question; confute, disprove, rebut, refute; contradict, counterAntonyms deny, gainsay

2 to state clearly and strongly avowed their undying love for each other Synonyms affirm, aver, avouch, assert, declare, guarantee, lay down, professRelated Words advance, advertise, boost, plug, promote, publicize; announce, blaze, call, proclaim, pronounce, say; accent, accentuate, emphasize, stress, underline, underscore; advocate, champion, defend, espouse, support, uphold; assure, convince, persuade; explain, justify, rationalize; reaffirm, reassertNear Antonyms minimize, understate; disregard, ignore, neglect, overlook