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.
Equipment
Part of speech: noun
Definition: The act of equipping, or the state of being equipped, as for a voyage or expedition.Whatever is used in equipping; necessaries for an expedition or voyage; the collective designation for the articles comprising an outfit; equipage; as, a railroad equipment (locomotives, cars, etc.; for carrying on business); horse equipment; infantry equipment; naval equipment; laboratory equipment.