noun

1. A mechanical device intended to make a task easier.

   “Hand me that tool, would you?   I don't have the right tools to start fiddling around with the engine.”

2. Equipment used in a profession, e.g., tools of the trade.

   “These are the tools of the trade.”

3. Something to perform an operation; an instrument; a means.

verb

1. To work on or shape with tools, e.g., hand-tooled leather.

2. To equip with tools.

3. To work very hard.

Synonyms: use