- tool [to͞ol]n.[ME toole < OE tol, akin to ON tol < ? IE base * deu- > TAW2]1. any implement, instrument, or utensil held in the hand and used to form, shape, fasten, add to, take away from, or otherwise change something by cutting, hitting, digging, rubbing, etc.: knives, saws, hammers, shovels, rakes, etc. are tools2.a) any similar instrument that is the working part of a power-driven machine, as a drill, band-saw blade, etc.b) the whole machine; machine tool3. anything that serves in the manner of a tool; a means [books are a scholar's tools]4. a person used to accomplish another's purposes, esp. when these are illegal or unethical; dupe; stooge5. Slang the penis: somewhat vulgar6. Law any instrument or device necessary to one's profession or occupation: in full tools of one's tradevt.1. to form, shape, or work with a tool2. to provide tools or machinery for (a factory, industry, etc.): often with up3.a) to drive (a vehicle)b) to convey (a person) in a vehicle4. to impress letters or designs on (leather, a book cover, etc.) with special toolsvi.1. to use a tool or tools2. to get or install the tools, equipment, etc. needed: often with up3. to ride or drive in a vehicleSYN.- IMPLEMENTtoolern.
English World dictionary. V. Neufeldt. 2014.