The Collaborative International Dictionary of English v.0.48:

Score \Score\, v. i.
   1. To keep the score in a game; to act as scorer.
      [Webster 1913 Suppl.]

   2. To make or count a point or points, as in a game; to
      tally.
      [Webster 1913 Suppl.]

   3. To run up a score, or account of dues.
      [Webster 1913 Suppl.]

   4. To succeed in finding a partner for sexual intercourse; to
      make a sexual conquest. [slang]
      [PJC]

   5. To purchase drugs illegally. [slang]
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Score \Score\ (sk[=o]r), v. t. [imp. & p. p. Scored
   (sk[=o]rd); p. pr. & vb. n. Scoring.]
   1. To mark with lines, scratches, or notches; to cut notches
      or furrows in; to notch; to scratch; to furrow; as, to
      score timber for hewing; to score the back with a lash.
      [1913 Webster]

            Let us score their backs.             --Shak.
      [1913 Webster]

            A briar in that tangled wilderness
            Had scored her white right hand.      --M. Arnold.
      [1913 Webster]

   2. Especially, to mark with significant lines or notches, for
      indicating or keeping account of something; as, to score a
      tally.
      [1913 Webster]

   3. To mark or signify by lines or notches; to keep record or
      account of; to set down; to record; to charge.
      [1913 Webster]

            Madam, I know when,
            Instead of five, you scored me ten.   --Swift.
      [1913 Webster]

            Nor need I tallies thy dear love to score. --Shak.
      [1913 Webster]

   4. To engrave, as upon a shield. [R.] --Spenser.
      [1913 Webster]

   5. To make a score of, as points, runs, etc., in a game.
      [1913 Webster]

   6. (Mus.) To write down in proper order and arrangement; as,
      to score an overture for an orchestra. See Score, n., 9.
      [1913 Webster]

   7. (Geol.) To mark with parallel lines or scratches; as, the
      rocks of New England and the Western States were scored in
      the drift epoch.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Score \Score\ (sk[=o]r), n. [AS. scor twenty, fr. sceran,
   scieran, to shear, cut, divide; or rather the kindred Icel.
   skor incision, twenty, akin to Dan. skure a notch, Sw.
   sk[*a]ra. See Shear.]
   1. A notch or incision; especially, one that is made as a
      tally mark; hence, a mark, or line, made for the purpose
      of account.
      [1913 Webster]

            Whereas, before, our forefathers had no other books
            but the score and the tally, thou hast caused
            printing to be used.                  --Shak.
      [1913 Webster]

   2. An account or reckoning; account of dues; bill; hence,
      indebtedness.
      [1913 Webster]

            He parted well, and paid his score.   --Shak.
      [1913 Webster]

   3. Account; reason; motive; sake; behalf.
      [1913 Webster]

            But left the trade, as many more
            Have lately done on the same score.   --Hudibras.
      [1913 Webster]

            You act your kindness in Cydaria's score. --Dryden.
      [1913 Webster]

   4. The number twenty, as being marked off by a special score
      or tally; hence, in pl., a large number.
      [1913 Webster]

            Amongst three or four score hogsheads. --Shak.
      [1913 Webster]

            At length the queen took upon herself to grant
            patents of monopoly by scores.        --Macaulay.
      [1913 Webster]

   5. A distance of twenty yards; -- a term used in ancient
      archery and gunnery. --Halliwell.
      [1913 Webster]

   6. A weight of twenty pounds. [Prov. Eng.]
      [1913 Webster]

   7. The number of points gained by the contestants, or either
      of them, in any game, as in cards or cricket.
      [1913 Webster]

   8. A line drawn; a groove or furrow.
      [1913 Webster]

   9. (Mus.) The original and entire draught, or its transcript,
      of a composition, with the parts for all the different
      instruments or voices written on staves one above another,
      so that they can be read at a glance; -- so called from
      the bar, which, in its early use, was drawn through all
      the parts. --Moore (Encyc. of Music).
      [1913 Webster]

   10. the grade received on an examination, such as those given
       in school or as a qualifying examination for a job or
       admission to school; -- it may be expressed as a
       percentage of answers which are correct, or as a number
       or letter; as, a score of 98 in a civil service exam.
       [PJC]

   In score (Mus.), having all the parts arranged and placed
      in juxtaposition. --Smart.

   To quit scores, to settle or balance accounts; to render an
      equivalent; to make compensation.
      [1913 Webster]

            Does not the earth quit scores with all the elements
            in the noble fruits that issue from it? --South.
      [1913 Webster]

WordNet (r) 3.0 (2006):

score
    n 1: a number or letter indicating quality (especially of a
         student's performance); "she made good marks in algebra";
         "grade A milk"; "what was your score on your homework?"
         [syn: mark, grade, score]
    2: a written form of a musical composition; parts for different
       instruments appear on separate staves on large pages; "he
       studied the score of the sonata" [syn: score, musical
       score]
    3: a number that expresses the accomplishment of a team or an
       individual in a game or contest; "the score was 7 to 0"
    4: a set of twenty members; "a score were sent out but only one
       returned"
    5: grounds; "don't do it on my account"; "the paper was rejected
       on account of its length"; "he tried to blame the victim but
       his success on that score was doubtful" [syn: score,
       account]
    6: the facts about an actual situation; "he didn't know the
       score"
    7: an amount due (as at a restaurant or bar); "add it to my
       score and I'll settle later"
    8: a slight surface cut (especially a notch that is made to keep
       a tally) [syn: score, scotch]
    9: a resentment strong enough to justify retaliation; "holding a
       grudge"; "settling a score" [syn: grudge, score,
       grievance]
    10: the act of scoring in a game or sport; "the winning score
        came with less than a minute left to play"
    11: a seduction culminating in sexual intercourse; "calling his
        seduction of the girl a `score' was a typical example of
        male slang" [syn: sexual conquest, score]
    v 1: gain points in a game; "The home team scored many times";
         "He hit a home run"; "He hit .300 in the past season" [syn:
         score, hit, tally, rack up]
    2: make small marks into the surface of; "score the clay before
       firing it" [syn: score, nock, mark]
    3: make underscoring marks [syn: score, mark]
    4: write a musical score for
    5: induce to have sex; "Harry finally seduced Sally"; "Did you
       score last night?"; "Harry made Sally" [syn: seduce,
       score, make]
    6: get a certain number or letter indicating quality or
       performance; "She scored high on the SAT"; "He scored a 200"
    7: assign a grade or rank to, according to one's evaluation;
       "grade tests"; "score the SAT essays"; "mark homework" [syn:
       grade, score, mark]

Moby Thesaurus II by Grady Ward, 1.0:

675 Moby Thesaurus words for "score":
   L, Nachtmusik, Sexagesima, Vandyke, absolute music, accompaniment,
   accomplish, account, account current, account for,
   account rendered, account stated, accounts payable,
   accounts receivable, achieve, acquire, adapt, adaptation, add,
   aggregate, air varie, aleatory, aleatory music, algebraize,
   alphabet, ambition, amount, amount due, armies, army, arrange,
   arrangement, arrive, art, aspiration, attain, autolithograph,
   avenge, bad debts, bag, balance, band, bar, basis, be a printmaker,
   be seized of, be successful, bevy, bezel, bill, bill of account,
   bill of lading, bills, birthmark, blaze, blaze a trail, blemish,
   blotch, blueprint, book, borrowing, box score, boxcar, boxcars,
   brand, brass tacks, break the bank, burr, calculate, calendar,
   calling, canal, canalize, capture, carve, cash account, cast,
   caste mark, castigate, catalog, catch, cause, chalk, chalk up,
   chamber music, chamber orchestra, chamfer, channel, character,
   charactering, characterization, charge, charges, chart, chase,
   check, check off, checkmark, chink, chisel, chiseling, chits, chop,
   choreography, chump, cicatrix, cicatrize, cipher, cleft, cloud,
   come by, come in for, come into, compose, composition, compute,
   condition, consideration, continuity, contract, control account,
   conventional representation, copy, corral, corrugate, corrugation,
   cost, count, count for, crack, cranny, crease, crena, crenellate,
   crenulate, cribble, crimp, cross-hatching, crosshatch, crowd, cue,
   cut, dado, damage, dance notation, dapple, dash, debt, deface,
   define, delimit, delineation, demarcate, demitint, demonstration,
   depiction, depictment, depression, derive, descant, diagonal,
   diagram, difference, dike, discolor, discoloration, ditch, divide,
   dope out, dot, dotted line, dozen, dozens, draft, drag down, drama,
   draw, drawing, due, dues, dun, duodecimo, dupe, earmark, earn,
   edition, eighty, electronic music, eleven, enchase, engrave,
   engravement, engraving, enroll, enter, enter into possession,
   enumerate, essential facts, essentials, estimate, etch, etching,
   etude, excoriate, exemplification, exercise, expenditure, expense,
   extract roots, fall guy, fifteen, fifty, figuration, figure,
   figure in, figure out, file, financial commitment, five and twenty,
   flay, fleck, flick, floating debt, flock, flocks, flourish, flute,
   fluting, fortnight, forty, four and twenty, fourscore,
   fourscore and ten, fourteen, freckle, funded debt, furrow, gain,
   gash, gem-engraving, get, glass-cutting, glyptic, go, goal, goat,
   goffer, gouge, grade, graduate, grand slam, grave, graving,
   greenhorn, groove, ground, grounds, grudge, guiding light,
   guiding star, gull, gully, hachure, hack, hairline, half a hundred,
   half tint, harmonization, harmonize, harvest, hatch, hatching,
   herds, hieroglyphic, hit, hit it, hit the jackpot, hit the mark,
   hole, hole in one, home run, homer, hordes, host, hosts, hymnal,
   hymnbook, iconography, ideal, ideogram, illustration, imagery,
   imaging, impanel, impress, imprint, incidental music, incise,
   incision, income account, indebtedness, indebtment, indent,
   indentation, index, inscribe, inscript, inscription, inspiration,
   instrument, instrumental music, instrumental score, instrumentate,
   intention, invention, inventory, invoice, itemize, itemized bill,
   jag, jog, joggle, jot, keep score, kerf, knurl, latest, legion,
   legions, lentigo, letter, liability, libretto, limning, line,
   lineation, lines, lining, list, lithograph, lodestar, logogram,
   logograph, long dozen, lots, lute tablature, machicolate, macula,
   mainspring, make, make a hit, make a killing, make a mark,
   make an adaptation, make an impression, make out, make prints,
   manifest, map, mar, mark, mark off, mark out, marking, masses,
   matter, maturity, measure, melodize, microgroove, mill, millions,
   mole, motive, mottle, mug, multiply, multitudes, music,
   music paper, music roll, musical notation, musical score,
   musicalize, myriads, national debt, net, nevus, news, nick, ninety,
   nock, nocturne, nonagenarian, notation, notch, number, numbers,
   obligation, obtain, octogenarian, opera, opera score, opus,
   orchestral score, orchestrate, orchestration, outstanding debt,
   packs, part, patch, patsy, pencil, pepper, piano score, picot,
   pictogram, picturization, piece, pigeonhole, pink, plan, playbook,
   pleat, pledge, plow, point, polka dot, poop, portraiture,
   portrayal, post, prefigurement, presentment, price, price tag,
   prick, principle, print, printing, procure, product, production,
   program, program music, projection, prosper, provision account,
   provocation, public debt, pull down, punch, punctuate, puncture,
   put to music, quantity, quindecennial, quindecim, quindecima,
   quindene, rabbet, rate, rationale, reach, realization, realize,
   ream out, reap, reason, reckon, reckoning, record, register,
   rendering, rendition, repay, representation, retaliate,
   revenue account, ricercar, riddle, rifle, rifling, ring the bell,
   rout, ruck, running account, rut, sack, sake, sales account,
   scallop, scar, scarification, scarify, scathe, scenario,
   scene plot, schedule, schema, scoop, scorch, score a success,
   scores, scoring, scotch, scourge, scrape, scratch, scratching,
   script, sculpture, seal, seam, secure, selling account,
   septuagenarian, serrate, serration, set, set to music, seventy,
   sexagenarian, sexagenary, sexagesimo-quarto, sheet music, shoals,
   shooting script, short score, side, sitting duck, situation,
   sixteen, sixteenmo, sixty, sixty-four, sixty-fourmo, slam, slash,
   slashing, slit, sonata, sonatina, songbook, songster, source,
   speck, speckle, splash, splotch, spot, spring, stain, stamp,
   statement, status quo, stigma, stigmatize, stipple, stippling,
   stock account, story, strawberry mark, streak, streaking, stria,
   striate, striation, strike, string orchestra, string quartet,
   strip, stripe, striping, stroke, study, sublineation, subtract,
   succeed, sucker, sulcation, sulcus, sum, summary, summation,
   suspense account, swarms, syllabary, symbol, tab, tablature,
   tabulate, take, take account of, tale, tally, tattoo, tattoo mark,
   tear to pieces, teens, text, the bottom line, the data,
   the details, the dope, the facts, the information, the particulars,
   the picture, the scoop, the specifics, the story, the whole story,
   theme and variations, thirteen, thirty-two, thirty-twomo,
   threescore, threescore and ten, thrive, tick, tick off, tint,
   tittle, tool, tooling, tooth, total, touchdown, trace, transcribe,
   transcript, transcription, transpose, trench, trio, triumph,
   trough, turn up trumps, twelve, twelvemo, twenty, twenty-five,
   twenty-four, twenty-fourmo, two dozen, two weeks, twoscore,
   type-cutting, ulterior motive, uncollectibles, underline,
   underlining, underscore, underscoring, unfulfilled pledge,
   valuation account, variation, version, victim, virgule,
   vocal score, vocation, watermark, well-worn groove, whole, win,
   word, work, work out, wrinkle, write, writing, written music,
   x number