The Collaborative International Dictionary of English v.0.48:

Cancel \Can"cel\, v. i. [imp. & p. p. Canceled or Cancelled;
   p. pr. & vb. n. Canceling or Cancelling.] [L. cancellare
   to make like a lattice, to strike or cross out (cf. Fr.
   canceller, OF. canceler) fr. cancelli lattice, crossbars,
   dim. of cancer lattice; cf. Gr. ? latticed gate. Cf.
   Chancel.]
   1. To inclose or surround, as with a railing, or with
      latticework. [Obs.]
      [1913 Webster]

            A little obscure place canceled in with iron work is
            the pillar or stump at which . . . our Savior was
            scourged.                             --Evelyn.
      [1913 Webster]

   2. To shut out, as with a railing or with latticework; to
      exclude. [Obs.] "Canceled from heaven." --Milton.
      [1913 Webster]

   3. To cross and deface, as the lines of a writing, or as a
      word or figure; to mark out by a cross line; to blot out
      or obliterate.
      [1913 Webster]

            A deed may be avoided by delivering it up to be
            cancelled; that is, to have lines drawn over it in
            the form of latticework or cancelli; though the
            phrase is now used figuratively for any manner of
            obliterating or defacing it.          --Blackstone.
      [1913 Webster]

   4. To annul or destroy; to revoke or recall.
      [1913 Webster]

            The indentures were canceled.         --Thackeray.
      [1913 Webster]

            He was unwilling to cancel the interest created
            through former secret services, by being refractory
            on this occasion.                     --Sir W.
                                                  Scott.
      [1913 Webster]

   5. (Print.) To suppress or omit; to strike out, as matter in
      type.
      [1913 Webster]

   Canceled figures (Print), figures cast with a line across
      the face., as for use in arithmetics.

   Syn: To blot out; obliterate; deface; erase; efface; expunge;
        annul; abolish; revoke; abrogate; repeal; destroy; do
        away; set aside. See Abolish.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Cancel \Can"cel\, n. [See Cancel, v. i., and cf. Chancel.]
   [1913 Webster]
   1. An inclosure; a boundary; a limit. [Obs.]
      [1913 Webster]

            A prison is but a retirement, and opportunity of
            serious thoughts, to a person whose spirit . . .
            desires no enlargement beyond the cancels of the
            body.                                 --Jer. Taylor.
      [1913 Webster]

   2. (Print)
      (a) The suppression or striking out of matter in type, or
          of a printed page or pages.
      (b) The part thus suppressed.
          [1913 Webster]

WordNet (r) 3.0 (2006):

cancel
    n 1: a notation cancelling a previous sharp or flat [syn:
         natural, cancel]
    v 1: postpone indefinitely or annul something that was
         scheduled; "Call off the engagement"; "cancel the dinner
         party"; "we had to scrub our vacation plans"; "scratch that
         meeting--the chair is ill" [syn: cancel, call off,
         scratch, scrub]
    2: make up for; "His skills offset his opponent's superior
       strength" [syn: cancel, offset, set off]
    3: declare null and void; make ineffective; "Cancel the election
       results"; "strike down a law" [syn: cancel, strike down]
    4: remove or make invisible; "Please delete my name from your
       list" [syn: delete, cancel]
    5: make invalid for use; "cancel cheques or tickets" [syn:
       cancel, invalidate]

Moby Thesaurus II by Grady Ward, 1.0:

222 Moby Thesaurus words for "cancel":
   KO, abandon, abbreviate, abolish, abolishment, abolition, abort,
   abridge, abrogate, abrogation, absolve, accent, accent mark,
   accommodate, adjust, annihilate, annul, annulment, balance, bar,
   belay, black out, blot, blot out, blotting, blotting out,
   blue-pencil, bowdlerize, bring to naught, bring to nothing, buffer,
   call off, cancel out, canceling, cancellation, cassation, cease,
   censor, character, come to nothing, compensate, compensate for,
   complete, coordinate, counteract, counterbalance, countermand,
   counterorder, counterpoise, countervail, cross out, custos, cut,
   cut it out, declare a moratorium, defeasance, dele, delete,
   deletion, deny, deracinate, desist, direct, disannul, discontinue,
   dispose of, do away with, dot, drop, drop it, drop the curtain,
   edit, edit out, efface, effacement, eliminate, end, end off,
   equalize, equate, eradicate, erase, erasure, even, even up,
   expression mark, expunction, expunge, expurgate, extinguish,
   fermata, finalize, finish, fit, fold up, frustrate, get it over,
   get over with, get through with, give over, give the quietus,
   give up, halt, have done with, hold, integrate, invalidate,
   invalidation, kayo, key signature, kibosh, kill, knock it off,
   knock out, lay off, lead, leave off, level, ligature, make up for,
   make void, mark, measure, metronomic mark, negate, negativate,
   negative, neutralize, notation, nullification, nullify, obliterate,
   obliteration, offset, omit, override, overrule, pause, perfect,
   poise, polish off, presa, proportion, put paid to, quash, quit,
   raze, recall, recant, recantation, redeem, refrain, relinquish,
   renege, renounce, repeal, repudiate, rescind, rescinding,
   rescindment, rescission, retract, retraction, reversal, reverse,
   revocation, revoke, revokement, rub out, rule out, scrag, scratch,
   scratch out, scrub, scrubbing, segno, set aside, setting aside,
   shoot down, sign, signature, slur, sponge, sponge out, square,
   stay, stop, strike, strike a balance, strike off, strike out,
   stultify, surrender, suspend, suspension, swell, symbol,
   tempo mark, terminate, thwart, tie, time signature, undo, vacate,
   vacation, vacatur, vinculum, vitiate, void, voidance, voiding,
   waive, waiver, waiving, washing out, wipe out, wiping out,
   withdraw, withdrawal, write off, write-off, zap



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

Cancel
CAN

    (CAN, Control-X) ASCII character 24.

   (1996-06-28)