tool

US /tuːl/
UK /tuːl/
"tool" picture
1.

a device or implement, especially one held in the hand, used to carry out a particular function.

:
He used a hammer as a tool to fix the broken chair.
A computer is an essential tool for modern work.
2.

a person used or manipulated by another for their own ends.

:
He felt like a mere tool in their scheme.
She was just a tool for his ambition.
1.

to equip with tools.

:
The mechanic needs to tool up for the new engine repair.
The factory was tooled for mass production.