or co-sign·er

[ koh-sahy-ner, koh-sahy- ]

  1. Finance. a joint signer of a negotiable instrument, especially a promissory note, who promises to repay the loan amount if the primary borrower cannot.

  1. Finance, Banking. an additional signer on a checking or savings account who acts as a guarantor jointly responsible for overdraft and other fees, but who cannot deposit or withdraw money from the account.

Origin of cosigner

First recorded in 1900–05; co- + signer

Words Nearby cosigner Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use cosigner in a sentence