1. To be adequate, satisfactory, or well suited to some particular purpose. A gift voucher really won't suffice for an anniversary present, Mary. This place will suffice for a temporary office while our building is being renovated.

2. To meet or satisfy someone's needs, desires, or demands. I really don't need anything elaborate for lunch. A bowl of soup and a ham and cheese sandwich would suffice for me. A steady job and a house in the suburbs may suffice for some people, but I crave more adventure in my life!