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To sign a paper or document, thereby making it possible for the rights represented therein to pass to another individual. Also spelled indorse.
v. 1) to sign one's name to the back of a check, bill of exchange or other negotiable instrument with the intention of making it cashable or transferable. 2) to pledge support to a program, proposal, or candidate. (See; endorsement)
endorseverb approve, attest, authenticate, back, certify, commend, confirm, ratify, sanction, second, support, validate
See also: abet, accept, accredit, acknowledge, adduce, advocate, affirm, agree, allow, approve, assent, assist, assure, attest, authorize, avouch, bear, bond, brand, certify, close, coincide, concede, concur, confirm, consent, constitute, corroborate, cosign, countenance, countersign, declare, embrace, encourage, ensure, espouse, establish, favor, guarantee, justify, let, mark, pass, permit, qualify, recommend, sanction, seal, side, sign, sponsor, subscribe, support, sustain, underwrite, uphold, validate, vouch, witness