tool

From WikiWord, the free dictionary

/tuːl/ English

Definitions

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.”
Equipment used in a profession, e.g., tools of the trade.“These are the tools of the trade.”
Something to perform an operation; an instrument; a means.
A piece of software used to develop software or hardware, or to perform low-level operations.“The software engineer had been developing lots of EDA tools. a tool for recovering deleted files from a disk”

To work on or shape with tools, e.g., hand-tooled leather.
To equip with tools.
To work very hard.
To put down another person (possibly in a subtle, hidden way), and in that way to use him or her to meet a goal.“Dude, he's not your friend. He's just tooling you.”