Meaning of TOOL in English
( n. )
An instrument such as a hammer, saw, plane, file, and the like, used in the manual arts, to facilitate mechanical operations; any instrument used by a craftsman or laborer at his work; an implement; as, the tools of a joiner, smith, shoe-maker, etc.; also, a cutter, chisel, or other part of an instrument or machine that dresses work.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012