To come, as into union or possession; become adjoined or entitled; attain by approach or succession: now used chiefly of attainment to a possession, office, or dignity: as, he acceded to the estate on his majority; the house of Hanover acceded to the English throne in 1714.To come by assent or agreement; give adhesion; yield; give in: as, to acccdc to one's terms or request.Synonyms To succeed, come (to), attain.To agree, assent, yield, consent, comply.