An implement, an instrument or apparatus designed (or at least used) as a means to a specific end, especially
An attachment, a piece of equipment to adapt another tool or machine to a specific purpose.
A non-manual apparatus or device, powered electrically or by another small motor, used in homes to perform domestic functions (household appliance) and/or in offices.
Use.
Customary or habitual usage.
The interest paid on a borrowed sum, usury.
The length of time permitted for the payment of a bill of exchange.