• cosignee,
• cosignor,
• disigner,
• cosnignor,
• consigner,
• cosomner,
• consigne,
• coignes,
• couigue,
• consgner,
• conisgner,
• co.signer,
• co.signor,
• cosgner,
• cosiner,
• cosigne,
• cosinger,
• cossigner,
• osigne,
• hogrigner

• cosign,
• cosignatory,
• cockaigne,
• co-sign.

The adjective form of the word "cosigner" is "cosigning".

The plural of the "cosigner" can be the "cosigners".

The singular of the "cosigner" can be the "cosigner".