The Collaborative International Dictionary of English v.0.48:

Toss \Toss\, v. t. [imp. & p. p. Tossed ; (less properly
   Tost ); p. pr. & vb. n. Tossing.] [ W. tosiaw, tosio, to
   jerk, toss, snatch, tosa quick jerk, a toss, a snatch. ]
   1. To throw with the hand; especially, to throw with the palm
      of the hand upward, or to throw upward; as, to toss a
      ball.
      [1913 Webster]

   2. To lift or throw up with a sudden or violent motion; as,
      to toss the head.
      [1913 Webster]

            He tossed his arm aloft, and proudly told me,
            He would not stay.                    --Addison.
      [1913 Webster]

   3. To cause to rise and fall; as, a ship tossed on the waves
      in a storm.
      [1913 Webster]

            We being exceedingly tossed with a tempest. --Act
                                                  xxvii. 18.
      [1913 Webster]

   4. To agitate; to make restless.
      [1913 Webster]

            Calm region once,
            And full of peace, now tossed and turbulent.
                                                  --Milton.
      [1913 Webster]

   5. Hence, to try; to harass.
      [1913 Webster]

            Whom devils fly, thus is he tossed of men.
                                                  --Herbert.
      [1913 Webster]

   6. To keep in play; to tumble over; as, to spend four years
      in tossing the rules of grammar. [Obs.] --Ascham.
      [1913 Webster]

   To toss off,
      (a) to drink hastily.
      (b) to accomplish easily or quickly.
      (c) to say in an offhand manner; as, to toss off a
          comment.
      (d) to masturbate; -- British slang.

   To toss the cars.See under Oar, n.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Toss \Toss\, n.
   1. A throwing upward, or with a jerk; the act of tossing; as,
      the toss of a ball.
      [1913 Webster]

   2. A throwing up of the head; a particular manner of raising
      the head with a jerk. --Swift.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Toss \Toss\, v. i.
   1. To roll and tumble; to be in violent commotion; to write;
      to fling.
      [1913 Webster]

            To toss and fling, and to be restless, only frets
            and enrages our pain.                 --Tillotson.
      [1913 Webster]

   2. To be tossed, as a fleet on the ocean. --Shak.
      [1913 Webster]

   To toss for, to throw dice or a coin to determine the
      possession of; to gamble for.

   To toss up, to throw a coin into the air, and wager on
      which side it will fall, or determine a question by its
      fall. --Bramsion.
      [1913 Webster]

WordNet (r) 3.0 (2006):

toss
    n 1: the act of flipping a coin [syn: flip, toss]
    2: (sports) the act of throwing the ball to another member of
       your team; "the pass was fumbled" [syn: pass, toss,
       flip]
    3: an abrupt movement; "a toss of his head"
    v 1: throw or toss with a light motion; "flip me the beachball";
         "toss me newspaper" [syn: flip, toss, sky, pitch]
    2: lightly throw to see which side comes up; "I don't know what
       to do--I may as well flip a coin!" [syn: flip, toss]
    3: throw carelessly; "chuck the ball" [syn: chuck, toss]
    4: move or stir about violently; "The feverish patient thrashed
       around in his bed" [syn: convulse, thresh, thresh
       about, thrash, thrash about, slash, toss,
       jactitate]
    5: throw or cast away; "Put away your worries" [syn: discard,
       fling, toss, toss out, toss away, chuck out, cast
       aside, dispose, throw out, cast out, throw away,
       cast away, put away]
    6: agitate; "toss the salad"

Moby Thesaurus II by Grady Ward, 1.0:

231 Moby Thesaurus words for "toss":
   agitate, agonize, be poised, billow, blind bargain, blunder, bob,
   bobble, bowl, break, bung, call, careen, career, cast, cast at,
   cast lots, catapult, chance at odds, change of pace, change-up,
   chuck, chuck at, chunk, clap, coggle, comb, crash, curve, cut lots,
   cut the cards, dangle, dart, dash, downcurve, draw lots,
   draw straws, ebb and flow, even break, even chance, fair shake,
   falter, fastball, fidget, fifty-fifty, fire, fire at, fling,
   fling at, flip, flip out, flounce, flounder, fluctuate, flutter,
   fork, forward pass, freak out on, gamble, gambling chance, game,
   get high on, glow, go pitapat, half a chance, have the fidgets,
   have the shakes, heave, heave at, hobbyhorse, hurl, hurl against,
   hurl at, hurtle, imbibe, incurve, jerk, jiggle, joggle,
   knuckleball, labor, lance, lash, lateral, lateral pass, launch,
   let fly, let fly at, librate, lift, lob, look all over,
   look everywhere, lot, lurch, make heavy weather, match coins,
   matter of chance, nutate, odds, oscillate, outcurve, palpitate,
   pant, pass, peak, peg, pelt, pendulate, pitch, pitch and plunge,
   pitch and toss, pitchfork, plank, play, play at dice,
   play the ponies, plop, plump, plunge, plunk, popple, potluck,
   potshot, pound, propel, put, put the shot, quaff, quake, quaver,
   quiver, raffle off, rake, random shot, ransack, rear, reel,
   resonate, rifle, rise, rise and fall, rock, roll, rummage, scend,
   scour, screwball, search high heaven, seethe, send, serve, service,
   shake, shake down, shake up, shiver, shoot craps, shot-put, shy,
   shy at, sinker, sip, slap, slider, sling, sling at, smash, snap,
   speculate, spitball, spitter, sport, sporting chance, square odds,
   squirm, stagger, standoff, stir up, struggle, stumble, sup, surge,
   swag, swallow, sway, swell, swell with emotion, swing, thrash,
   thrash about, thrill, thrill to, throb, throw, throw at, thrust,
   tilt, tingle, tingle with excitement, toss and tumble,
   toss and turn, toss at, toss-up, totter, touch and go, tremble,
   tumble, turn inside out, turn on to, turn upside down,
   twist and turn, twitch, twitter, undulate, upcurve, vacillate,
   vibrate, volutation, wag, waggle, wallop, wallow, wave, waver,
   welter, wiggle, wobble, wriggle, writhe, yaw



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

Terminal Oriented Social Science
TOSS

    (TOSS) The Cambridge Project Project MAC was an
   ARPA-funded political science computing project.  They worked
   on topics like survey analysis and simulation, led by Ithiel
   de Sola Pool, J.C.R. Licklider and Douwe B. Yntema.  Yntema
   had done a system on the MIT Lincoln Labs TX-2 called the
   Lincoln Reckoner, and in the summer of 1969 led a Cambridge
   Project team in the construction of an experiment called TOSS.
   TOSS was like Logo, with matrix operators.  A major
   feature was multiple levels of undo, back to the level of
   the login session.  This feature was cheap on the Lincoln
   Reckoner, but absurdly expensive on Multics.

   (1997-01-29)