As a Noun: 1. In a vehicle, a flat rubber ring that is used to turn other parts of an engine. English = drive belt. Note: 1. There appears to be no commonly used Auslan sign for DRIVE BELT for most signers (but some signers represent this visually using these depicting signs, once they have established the topic). This suggested sign is a combination of the Auslan sign CAR and depiction of a flat object that is circular. Source of this recommended sign: Victorian College for the Deaf.