co-sign   (TTS Sound)

The co-sign has 2 Senses.

• cosign, co-sign
• sign jointly; "Husband and wife co-signed the lease"
• 連署する

• cosign, co-sign
• sign and endorse (another person's signature), as for a loan
• ローンなどで、サインをして（他人のサインを）裏書きをする