Definition of: ratify

(rat′ə·fī) v.t. ·fied, ·fy·ing
To give sanction to, especially official or authoritative sanction; make valid by approving, especially the work of an agent or representative; confirm. [<F ratifier <Med. L ratificare <L ratus fixed, reckoned + facere make]
—rat′i·fi′er noun Synonyms: accept, approve, confirm, corroborate, endorse, establish, justify, sanction, seal, settle, substantiate, validate. See ASSENT, CONFIRM, JUSTIFY. Antonyms: abolish, abrogate, annul, cancel, deny, disavow, disown, extinguish, nullify, repeal, rescind, revoke.