Definition, Meaning & Synonyms
cosign
verb
/ˈkoʊsaɪn/

Definition
To sign a document jointly with another person, often to guarantee a loan or agreement.

Examples
- She had to cosign the loan because he didn’t have enough credit history.
- The parents agreed to cosign for their daughter’s new apartment lease.

Meaning
When you cosign something, you are agreeing to take responsibility if the primary signer cannot fulfill their obligations.

Synonyms
- counter-sign
- endorse
- guarantee