Synonyms to be truthful

hold good, afford proof of, ascertain, be consistent, be demonstrable, be irrefutable, be logical, be reasonable, be the case, be true, bring home to, cinch, clinch, conform to fact, demonstrate, determine, establish, figure, fix, follow, follow from, have a case, hold, hold together, hold true, hold up, hold water, make good, make out, make sense, nail down, prove, prove out, prove to be, prove true, remain valid, remove all doubt, set at rest, settle, settle the matter, show, stand the test, stand to reason, stand up, stick together, wash, accord, act in concert, act together, adhere, affiliate, agglomerate, agree, ally, amalgamate, answer to, assent, associate, assort with, band, band together, be in league, be of one, be uniform with, bunch, check, chime, clasp, cleave, cling, cling to, clot, club together, cluster, coact, coagulate, coalesce, cohere, coincide, collaborate, collude, combine, come together, communicate, concert, concord, concur, confederate, conform, conform with, congeal, conglomerate