The Collaborative International Dictionary of English v.0.48:

Fix \Fix\ (f[i^]ks), a. [OE., fr. L. fixus, p. p. of figere to
   fix; cf. F. fixe.]
   Fixed; solidified. [Obs.] --Chaucer.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Fix \Fix\, v. t. [imp. & p. p. Fixed (f[i^]kst); p. pr. & vb.
   n. Fixing.] [Cf. F. fixer.]
   1. To make firm, stable, or fast; to set or place
      permanently; to fasten immovably; to establish; to
      implant; to secure; to make definite.
      [1913 Webster]

            An ass's nole I fixed on his head.    --Shak.
      [1913 Webster]

            O, fix thy chair of grace, that all my powers
            May also fix their reverence.         --Herbert.
      [1913 Webster]

            His heart is fixed, trusting in the Lord. --Ps.
                                                  cxii. 7.
      [1913 Webster]

            And fix far deeper in his head their stings.
                                                  --Milton.
      [1913 Webster]

   2. To hold steadily; to direct unwaveringly; to fasten, as
      the eye on an object, the attention on a speaker.
      [1913 Webster]

            Sat fixed in thought the mighty Stagirite. --Pope.
      [1913 Webster]

            One eye on death, and one full fix'd on heaven.
                                                  --Young.
      [1913 Webster]

   3. To transfix; to pierce. [Obs.] --Sandys.
      [1913 Webster]

   4. (Photog.) To render (an impression) permanent by treating
      with a developer to make it insensible to the action of
      light. --Abney.
      [1913 Webster]

   5. To put in order; to arrange; to dispose of; to adjust; to
      set to rights; to set or place in the manner desired or
      most suitable; hence, to repair; as, to fix the clothes;
      to fix the furniture of a room. [Colloq. U.S.]
      [1913 Webster]

   6. (Iron Manuf.) To line the hearth of (a puddling furnace)
      with fettling.

   Syn: To arrange; prepare; adjust; place; establish; settle;
        determine.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Fix \Fix\, v. i.
   1. To become fixed; to settle or remain permanently; to cease
      from wandering; to rest.
      [1913 Webster]

            Your kindness banishes your fear,
            Resolved to fix forever here.         --Waller.
      [1913 Webster]

   2. To become firm, so as to resist volatilization; to cease
      to flow or be fluid; to congeal; to become hard and
      malleable, as a metallic substance. --Bacon.
      [1913 Webster]

   To fix on, to settle the opinion or resolution about; to
      determine regarding; as, the contracting parties have
      fixed on certain leading points.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Fix \Fix\, n.
   1. A position of difficulty or embarassment; predicament;
      dilemma. [Colloq.]
      [1913 Webster]

            Is he not living, then? No. is he dead, then? No,
            nor dead either. Poor Aroar can not live, and can
            not die, -- so that he is in an almighty fix. --De
                                                  Quincey.
      [1913 Webster]

   2. (Iron Manuf.) fettling. [U.S.]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Fettling \Fet"tling\, n.
   1. (Metal.) A mixture of ore, cinders, etc., used to line the
      hearth of a puddling furnace. [Eng.]

   Note: [It is commonly called fix in the United States.]
         [1913 Webster]

   2. (Pottery) The operation of shaving or smoothing the
      surface of undried clay ware.
      [1913 Webster]

WordNet (r) 3.0 (2006):

fix
    n 1: informal terms for a difficult situation; "he got into a
         terrible fix"; "he made a muddle of his marriage" [syn:
         fix, hole, jam, mess, muddle, pickle, kettle
         of fish]
    2: something craved, especially an intravenous injection of a
       narcotic drug; "she needed a fix of chocolate"
    3: the act of putting something in working order again [syn:
       repair, fix, fixing, fixture, mend, mending,
       reparation]
    4: an exemption granted after influence (e.g., money) is brought
       to bear; "collusion resulted in tax fixes for gamblers"
    5: a determination of the place where something is; "he got a
       good fix on the target" [syn: localization, localisation,
       location, locating, fix]
    v 1: restore by replacing a part or putting together what is
         torn or broken; "She repaired her TV set"; "Repair my shoes
         please" [syn: repair, mend, fix, bushel, doctor,
         furbish up, restore, touch on] [ant: break, bust]
    2: cause to be firmly attached; "fasten the lock onto the door";
       "she fixed her gaze on the man" [syn: fasten, fix,
       secure] [ant: unfasten]
    3: decide upon or fix definitely; "fix the variables"; "specify
       the parameters" [syn: specify, set, determine,
       define, fix, limit]
    4: prepare for eating by applying heat; "Cook me dinner,
       please"; "can you make me an omelette?"; "fix breakfast for
       the guests, please" [syn: cook, fix, ready, make,
       prepare]
    5: take vengeance on or get even; "We'll get them!"; "That'll
       fix him good!"; "This time I got him" [syn: pay back, pay
       off, get, fix]
    6: set or place definitely; "Let's fix the date for the party!"
    7: kill, preserve, and harden (tissue) in order to prepare for
       microscopic study
    8: make fixed, stable or stationary; "let's fix the picture to
       the frame" [syn: fixate, fix]
    9: make infertile; "in some countries, people with genetically
       transmissible disabilites are sterilized" [syn: sterilize,
       sterilise, desex, unsex, desexualize, desexualise,
       fix]
    10: influence an event or its outcome by illegal means; "fix a
        race"
    11: put (something somewhere) firmly; "She posited her hand on
        his shoulder"; "deposit the suitcase on the bench"; "fix
        your eyes on this spot" [syn: situate, fix, posit,
        deposit]
    12: make ready or suitable or equip in advance for a particular
        purpose or for some use, event, etc; "Get the children ready
        for school!"; "prepare for war"; "I was fixing to leave town
        after I paid the hotel bill" [syn: fix, prepare, set
        up, ready, gear up, set]

Moby Thesaurus II by Grady Ward, 1.0:

645 Moby Thesaurus words for "fix":
   KO, acclimate, acclimatize, accommodate, accord, accustom, adapt,
   adjust, adjust to, affix, afford proof of, aim, aim at, align,
   allocate, allot, alter, amend, anchor, annex, antitoxin, apportion,
   approach, arrange, array, ascertain, aspect, assign, assimilate,
   assure, astronavigation, attach, attend to, attitude, attune,
   auger, azimuth, baffle, bafflement, bag, bang, base, be quits,
   bearing, bearings, beat, beat all hollow, beat hollow, bed, belay,
   bend, best, bewilderment, bite, blast, block out, blot out,
   booster, booster dose, booster shot, bore, bother, bound, box,
   break, break in, bribe, brighten up, bring home to, broach,
   brush up, build, build in, bump off, buy, buy off, carve, case,
   case harden, cast, castrate, catch, celestial navigation, cement,
   certify, change, chart, chisel, chronometer, cinch, circle in,
   circumscribe, circumstance, clamp, clear for action,
   clear the decks, clear up, clinch, close, close with,
   coastwise navigation, cobble, codify, collocate, come down on,
   commission, compose, concenter, concentrate, conclude, condition,
   confirm, confoundment, confusion, consolan, cook, cook up,
   coordinate, corner, corrupt, count, countersink, cramp, create,
   croak, cure, cut, cut to, darn, dead reckoning, deal, deal out,
   decide, deck, decrease, deep-dye, defeat, define, delimit,
   delimitate, demarcate, demonstrate, denominate, deploy,
   desexualize, designate, destroy, determine, dilemma, direct,
   directionize, discomposure, disconcert, disconcertedness,
   disconcertion, disconcertment, dish, dismiss all doubt, dispose,
   distribute, disturbance, divide, do for, do in, do up, doctor,
   domesticate, domesticize, dose, draft, dress, drill, dropping,
   drub, drug packet, efform, emasculate, embarrassment, embed, emend,
   empierce, emplace, enclose, engraft, engrave, enigma, ensure,
   entrench, equalize, erase, establish, estate, etch, eunuchize,
   even the score, exposure, familiarize, fashion, fasten, figure,
   find, find out, fit, fix on, fix up, fixate, focus, follow,
   follow from, footing, forge, form, formalize, found, frame,
   frame up, freshen, frontage, furbish, furbish up, gear to, geld,
   gentle, get, get a fix, get at, get even with, get ready, get to,
   give it to, give the business, gore, gouge, gouge out, graft,
   grapple, grease, grease the palm, ground, gun down, habituate,
   harden, harmonize, have, have a case, hew, hide, hit, hold good,
   hold on, hold water, hole, home in on, homologate, homologize,
   honeycomb, hors de combat, housebreak, hypodermic,
   hypodermic injection, ice, impact, impale, implant, impress,
   imprint, increase, inculcate, indicate, infix, ingrain, injection,
   inoculation, inscribe, install, instill, insure, inure, invest,
   jam, jet injection, key to, knead, knit, knock out, lambaste,
   lance, lather, lay, lay off, lay out, lay the foundation, level at,
   lick, lick into shape, lie, line, line of position, line up,
   localize, locate, location, lodge, loran, lot, lubricate,
   mainlining, make, make a decision, make arrangements, make certain,
   make fast, make good, make no doubt, make no mistake, make out,
   make plumb, make preparations, make quits, make ready, make sure,
   make sure of, make uniform, make up, mark, mark boundaries,
   mark off, mark out, mark the periphery, marshal, measure, mend,
   mention, methodize, mint, mobilize, modality, mode, model, mold,
   moor, mutilate, mystery, nail down, name, narcotic injection,
   narcotic shot, naturalize, navigate, needle, neuter, nonplus,
   normalize, number, off, organize, orient, orientate, orientation,
   outclass, outdo, outfight, outgeneral, outmaneuver, outpoint,
   outrun, outsail, outshine, overdose, overhaul, pack, pack the deal,
   parcel, parcel out, pass, patch, patch up, pay, pay off, pay out,
   penetrate, perforate, perplexity, perturbation, pick out, pickle,
   pierce, pilotage, pin down, pink, pinpoint, pitch, place, plan,
   plane sailing, plant, plight, plot, point, point at, point out,
   point to, point-to-point navigation, polish, polish off, polish up,
   popping, portion, position, position line, posture, pother, potion,
   prearrange, preconcert, precontrive, predesign, predicament,
   premeditate, preorder, prep, prepare, present, pretreat, prick,
   print, problem, process, proportion, prove, prove to be,
   prove true, provide, punch, puncture, punish, purchase, purpose,
   put, put in, put in commission, put in order, put in place,
   put in repair, put in shape, put in tune, put to, put up, puzzle,
   puzzlement, quandary, quantify, quantize, radar, radio beacon,
   radio bearing, radio navigation, rally, range, rank, rate,
   rationalize, reach, ready, ready up, ream, ream out, reassure,
   rebuild, recap, reconcile, recondition, reconstruct, rectify,
   reduce, regiment, regularize, regulate, remove all doubt, renovate,
   repair, resolve, retouch, retread, revamp, revise, revive, riddle,
   rig, right, rivet, root, rope off, rough out, roughcast, roughhew,
   routinize, rub out, rub up, ruin, rule, run through, scheme,
   scrape, screw up, sculpt, sculpture, scuttle, seal, season, seat,
   secure, see that, see to it, select, serve one out, service, set,
   set at rest, set in, set out, set right, set the limit, set to,
   set to rights, set up, settle, settle preliminaries,
   settle the matter, settle the score, settle with, sew up, sextant,
   shape, shine, shoot down, shooting up, shoran, shot, show,
   sight on, signify, similarize, sink, situate, situation, skewer,
   skin, skin alive, skin-popping, sofar, sonar, sop, sort out, space,
   spay, spear, specialize, specify, spike, spit, spot, spruce,
   spruce up, square, square accounts, stab, stabilize,
   stack the cards, stake out, stamp, standardize, standing, state,
   station, status, steady, stereotype, stew, stick, stipulate,
   straighten out, suborn, surround, sync, synchronize, systematize,
   tables, tailor, take a resolution, take care of, take revenge,
   tame, tamper with, tan, tap, thermoform, thrash, tickle the palm,
   tighten, tinker, tinker up, tone up, torpedo, touch up, train,
   train upon, transfix, transpierce, treat, trepan, trephine,
   triangulate, trice up, trim, trim to, triumph over, trounce, true,
   true up, try out, tune, tune up, turn, turn upon, unassuredness,
   undo, unsex, upset, vaccination, vaccine, vamp, vamp up, vest,
   waste, wedge, whip, will, wipe out, wont, work, work out, worst,
   zap, zero in on



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

fix
 n.,v.

    What one does when a problem has been reported too many times to be
    ignored.


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

FIX

   1.  Federal Information Exchange.

   2.  Financial Information eXchange.

   (2001-05-14)


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

fix

   1.  The fixed point combinator.  Called Y in
   combinatory logic.  Fix is a higher-order function which
   returns a fixed point of its argument (which is a function).

   	fix :: (a -> a) -> a
   	fix f = f (fix f)

   Which satisfies the equation

   	fix f = x such that f x = x.

   Somewhat surprisingly, fix can be defined as the non-recursive
   lambda abstraction:

   	fix = \ h . (\ x . h (x x)) (\ x . h (x x))

   Since this involves self-application, it has an infinite
   type.  A function defined by

   	f x1 .. xN = E

   can be expressed as

   	f = fix (\ f . \ x1 ... \ xN . E)
   	  = (\ f . \ x1 ... \xN . E)
   		(fix (\ f . \ x1 ... \ xN . E))
   	  = let f = (fix (\ f . \ x1 ... \ xN . E))
   	    in \ x1 ... \xN . E

   If f does not occur free in E (i.e. it is not recursive)
   then this reduces to simply

   	f = \ x1 ... \ xN . E

   In the case where N = 0 and f is free in E, this defines an
   infinite data object, e.g.

   	ones = fix (\ ones . 1 : ones)
   	     = (\ ones . 1 : ones) (fix (\ ones . 1 : ones))
   	     = 1 : (fix (\ ones . 1 : ones))
   	     = 1 : 1 : ...

   Fix f is also sometimes written as mu f where mu is the Greek
   letter or alternatively, if f = \ x . E, written as mu x . E.

   Compare quine.

   [Jargon File]

   (1995-04-13)

   2. bug fix.

   (1998-06-25)