Search Result for "cosigner": 
Wordnet 3.0

NOUN (2)

1. one of two or more signers of the same document (as a treaty or declaration);
[syn: cosigner, cosignatory]

2. a signer in addition to the principal signer (to verify the authenticity of the principal signature or to provide surety); 



WordNet (r) 3.0 (2006):

cosigner
    n 1: one of two or more signers of the same document (as a
         treaty or declaration) [syn: cosigner, cosignatory]
    2: a signer in addition to the principal signer (to verify the
       authenticity of the principal signature or to provide surety)