Tool
Part of speech: verb
Definition: To work on or shape with tools, e.g., hand-tooled leather. To equip with tools. To work very hard. To put someone else down (possibly in a subtle, hidden way), and in that way to use them to meet a goal. To intentionally attack the ball so that it deflects off a blocker out of bounds.
Part of speech: noun
Definition: A mechanical device intended to make a task easier. Equipment used in a profession, e.g., tools of the trade. Something to perform an operation; an instrument; a means. A piece of software used to develop software or hardware. A person or group which is used or controlled, usually unwittingly, by another person or group. Penis.
Example sentence: A sword never kills anybody; it is a tool in the killer's hand.
Instrument
Part of speech: noun
Definition: A device used to produce music.A measuring or displaying device.A tool, implement.A legal document, such as a contract, deed, trust, mortgage, power, indenture, or will.A person used as a mere tool for achieving a goal.
Part of speech: verb
Definition: To apply measuring devices.To devise, conceive, cook-up, plan.
Example sentence: I play a musical instrument a little, but only for my own amazement.