The Collaborative International Dictionary of English v.0.48:

Tool \Tool\, v. t. [imp. & p. p. tooled; p. pr. & vb. n.
   tooling.]
   1. To shape, form, or finish with a tool. "Elaborately
      tooled." --Ld. Lytton.
      [1913 Webster]

   2. To drive, as a coach. [Slang, Eng.]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tool \Tool\ (t[=oo]l), v. i. [Cf. Tool, v. t., 2.]
   To travel in a vehicle; to ride or drive. [Colloq.]

         Boys on their bicycles tooling along the well-kept
         roads.                                   --Illust.
                                                  American.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Tool \Tool\ (t[=oo]l), n. [OE. tol,tool. AS. t[=o]l; akin to
   Icel. t[=o]l, Goth. taijan to do, to make, taui deed, work,
   and perhaps to E. taw to dress leather. [root]64.]
   1. 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.
      [1913 Webster]

   2. A machine for cutting or shaping materials; -- also called
      machine tool.
      [1913 Webster]

   3. Hence, any instrument of use or service.
      [1913 Webster]

            That angry fool . . .
            Whipping her horse, did with his smarting tool
            Oft whip her dainty self.             --Spenser.
      [1913 Webster]

   4. A weapon. [Obs.]
      [1913 Webster]

            Him that is aghast of every tool.     --Chaucer.
      [1913 Webster]

   5. A person used as an instrument by another person; -- a
      word of reproach; as, men of intrigue have their tools, by
      whose agency they accomplish their purposes.
      [1913 Webster]

            I was not made for a minion or a tool. --Burks.
      [1913 Webster]

WordNet (r) 3.0 (2006):

tool
    n 1: an implement used in the practice of a vocation
    2: the means whereby some act is accomplished; "my greed was the
       instrument of my destruction"; "science has given us new
       tools to fight disease" [syn: instrument, tool]
    3: a person who is controlled by others and is used to perform
       unpleasant or dishonest tasks for someone else [syn:
       creature, tool, puppet]
    4: obscene terms for penis [syn: cock, prick, dick,
       shaft, pecker, peter, tool, putz]
    v 1: drive; "The convertible tooled down the street"
    2: ride in a car with no particular goal and just for the
       pleasure of it; "We tooled down the street" [syn: joyride,
       tool, tool around]
    3: furnish with tools
    4: work with a tool

The Free On-line Dictionary of Computing (19 January 2023):

tool

   1.  A program used primarily to create, manipulate,
   modify, or analyse other programs, such as a compiler or an
   editor or a cross-referencing program.  Opposite: app,
   operating system.

   2. A Unix application program with a simple, "transparent"
   (typically text-stream) interface designed specifically to be
   used in programmed combination with other tools (see filter,
   plumbing).

   3.  (MIT: general to students there) To work; to
   study (connotes tedium).  The TMRC Dictionary defined this
   as "to set one's brain to the grindstone".  See hack.

   4.  (MIT) A student who studies too much and
   hacks too little.  MIT's student humour magazine rejoices in
   the name "Tool and Die".

   [Jargon File]

   (1996-12-12)


The Jargon File (version 4.4.7, 29 Dec 2003):

tool


    1. n.A program used primarily to create, manipulate, modify, or analyze
    other programs, such as a compiler or an editor or a cross-referencing
    program. Oppose app, operating system; see also toolchain.

    2. [Unix] An application program with a simple, ‘transparent’ (typically
    text-stream) interface designed specifically to be used in programmed
    combination with other tools (see filter, plumbing).

    3. [MIT: general to students there] vi. To work; to study (connotes
    tedium). The TMRC Dictionary defined this as “to set one's brain to the
    grindstone”. See hack.

    4. n. [MIT] A student who studies too much and hacks too little. (MIT's
    student humor magazine rejoices in the name Tool and Die.)