n.
    - a device or implement, typically hand-held, used to carry out a particular function.
- a thing used to help perform a job. ▸a person exploited by another. 
- a distinct design in the tooling of a book. ▸a small stamp or roller used to make such a design. 
- vulgar slang a man's penis.
v.
     - impress a design on (a leather book cover) with a heated tool.
- equip or be equipped with tools for industrial production.
- 
(tool up or be tooled up)
 Brit. informal be or become armed.
- informal, chiefly N. Amer. drive or ride in a casual or leisurely manner.
- dress (stone) with a chisel.
Derivative
  
  Etymology
  OE tōl, from a Gmc base meaning ‘prepare’.