Synonyms to keep alive

patent, OK, admission, aegis, allowance, apparent, arm, arm guard, armor, authorize, backstop, blank check, blatant, bless, bound, brevet, buffer, bulwark, bumper, carte blanche, certificate, certificate of invention, certify, champion, charter, clean-cut, clear, clear as crystal, clear-cut, cloak, compass about, concession, condition, confine, consent, conserve, conspicuous, contain, contraceptive, control, copyright, cover, crash helmet, crystal-clear, cushion, dashboard, defend, defined, definite, diploma, diplomatic immunity, discernible, discharge, discipline, dispensation, distinct, dodger, draw the line, empower, enable, enfranchise, ensure, entitle, evident, exception, exemption, explicit, express, face mask, favor, fence, fend, fender, finger guard, flagrant, foot guard, franchise, freedom, fuse, give official sanction, give power, glaring, goggles, governor, grant, gross, guarantee, guard, guardrail, hand guard, handrail, harbor, hard hat, haven, hedge about, helmet, immunity, in focus, indisputable, indubitable, indulgence, insulation, insure, interlock, keep, keep from harm, keep intact, kee