cosign

English Thesaurus

1. sign and endorse (another person's signature), as for a loan (verb.communication)

hypernym	:	endorse, indorse,
definition	:	sign as evidence of legal transfer (verb.communication)

2. sign jointly (verb.social)

hypernym	:	formalise, formalize, validate,
definition	:	declare or make legally valid (verb.social)

3. sign and endorse (another person's signature), as for a loan (verb.communication)

derivation	:	cosigner,
definition	:	a signer in addition to the principal signer (to verify the authenticity of the principal signature or to provide surety) (noun.person)

4. sign jointly (verb.social)

derivation	:	cosignatory, cosigner,
definition	:	one of two or more signers of the same document (as a treaty or declaration) (noun.person)

5. sign and endorse (another person's signature), as for a loan (verb.communication)

derivation	:	cosigner,
definition	:	a signer in addition to the principal signer (to verify the authenticity of the principal signature or to provide surety) (noun.person)

6. sign jointly (verb.social)

derivation	:	cosignatory, cosigner,
definition	:	one of two or more signers of the same document (as a treaty or declaration) (noun.person)