The Collaborative International Dictionary of English v.0.48:

Gambit \Gam"bit\, n. [F. gambit, cf. It. gambitto gambit, a
   tripping up. See Gambol, n.] (Chess Playing)
   A mode of opening the game, in which a pawn is sacrificed to
   gain an attacking position.
   [1913 Webster]

WordNet (r) 3.0 (2006):

gambit
    n 1: an opening remark intended to secure an advantage for the
         speaker [syn: gambit, ploy]
    2: a maneuver in a game or conversation [syn: ploy, gambit,
       stratagem]
    3: a chess move early in the game in which the player sacrifices
       minor pieces in order to obtain an advantageous position

Moby Thesaurus II by Grady Ward, 1.0:

111 Moby Thesaurus words for "gambit":
   alpha, approach, art, artful dodge, artifice, assay, attempt,
   bag of tricks, bid, blind, bluff, bosey, breaking-in, catch,
   chicanery, chouse, conspiracy, contrivance, coup, crack, craft,
   curve, curve-ball, cute trick, deceit, design, device, dirty deal,
   dirty trick, dodge, effort, endeavor, essay, expedient, experiment,
   fakement, fast deal, feint, fetch, ficelle, first, first blush,
   first glance, first impression, first inning, first lap,
   first move, first round, first sight, first stage, first step,
   fling, game, gimmick, go, googly, grift, hocus-pocus, initial,
   initiative, intrigue, jig, joker, juggle, jugglery, knavery,
   le premier pas, lick, little game, maneuver, move, offer,
   opening move, pass, plan, play, plot, ploy, prime, primitiveness,
   primitivity, racket, red herring, ruse, scheme, scurvy trick,
   shift, shot, sleight, sleight of hand, sleight-of-hand trick, stab,
   step, stratagem, strategy, stroke, strong bid, subterfuge, tactic,
   tentative, trial, trial and error, trick, trickery, try,
   undertaking, warming-up, whack, whizzer, wile, wily device



The Free On-line Dictionary of Computing (30 December 2018):

Gambit

    A variant of Scheme R3.99 supporting the future
   construct of Multilisp by Marc Feeley
   .  Implementation includes optimising
   compilers for Macintosh (with Toolbox and built-in editor)
   and Motorola 680x0 Unix systems and HP300, BBN
   GP100 and NeXT.  Version 2.0 conforms to the IEEE
   Scheme standard.

   Gambit used PVM as its intermediate language.

   (ftp://acorn.cs.brandeis.edu/dist),
   (ftp://ftp.cso.uiuc.edu/pub/amiga/fish/f7/ff764/Gambit_Terp).
   (ftp://ftp.iro.umontreal.ca/pub/parallele/gambit/).

   Mailing list: gambit@trex.umontreal.ca.

   (1998-02-10)