[1] : The Collaborative International Dictionary of English v.0.48

gear \gear\ g=er v. t. imp.  p. p. geared g=erd; p.
   pr.  vb. n. gearing.
   1. to dress; to put gear on; to harness.
      1913 webster

   2. mach. to provide with gearing.
      1913 webster

   3. to adapt toward some specific purpose; as, they geared
      their advertising for maximum effect among teenagers.
      pjc

   double geared, driven through twofold compound gearing, to
      increase the force or speed; -- said of a machine.
      1913 webster
see also:
geared gearing double geared 

[2] : The Collaborative International Dictionary of English v.0.48

gear \gear\ g=er, n. oe. gere, ger, as. gearwe clothing,
   adornment, armor, fr. gearo, gearu, ready, yare; akin to ohg.
   garawimac, garwimac ornament, dress. see yare, and cf.
   garb dress.
   1. clothing; garments; ornaments.
      1913 webster

            array thyself in thy most gorgeous gear. --spenser.
      1913 webster

   2. goods; property; household stuff. --chaucer.
      1913 webster

            homely gear and common ware.          --robynson
                                                  more's
                                                  utopia.
      1913 webster

   3. whatever is prepared for use or wear; manufactured stuff
      or material.
      1913 webster

            clad in a vesture of unknown gear.    --spenser.
      1913 webster

   4. the harness of horses or cattle; trapping.
      1913 webster

   5. warlike accouterments. scot. --jamieson.
      1913 webster

   6. manner; custom; behavior. obs. --chaucer.
      1913 webster

   7. business matters; affairs; concern. obs.
      1913 webster

            thus go they both together to their gear. --spenser.
      1913 webster

   8. mech.
      a a toothed wheel, or cogwheel; as, a spur gear, or a
          bevel gear; also, toothed wheels, collectively.
      b an apparatus for performing a special function;
          gearing; as, the feed gear of a lathe.
      c engagement of parts with each other; as, in gear; out
          of gear.
          1913 webster

   9. pl. naut. see 1st jeer
      b .
          1913 webster

   10. anything worthless; stuff; nonsense; rubbish. obs. or
       prov. eng. --wright.
       1913 webster

             that servant of his that confessed and uttered this
             gear was an honest man.              --latimer.
       1913 webster

   bever gear. see bevel gear.

   core gear, a mortise gear, or its skeleton. see mortise
      wheel, under mortise.

   expansion gear steam engine, the arrangement of parts for
      cutting off steam at a certain part of the stroke, so as
      to leave it to act upon the piston expansively; the
      cut-off. see under expansion.

   feed gear. see feed motion, under feed, n.

   gear cutter, a machine or tool for forming the teeth of
      gear wheels by cutting.

   gear wheel, any cogwheel.

   running gear. see under running.

   to throw in gear or to throw out of gear mach., to
      connect or disconnect wheelwork or couplings, etc.; to
      put in, or out of, working relation.
      1913 webster
see also:
yare garb jeer bever gear bevel gear core gear 
mortise wheel mortise expansion gear expansion feed gear 
feed motion feed gear cutter gear wheel running gear 
running to throw in gear to throw out of gear 

[3] : The Collaborative International Dictionary of English v.0.48

gear \gear\, v. i. mach.
   to be in, or come into, gear.
   1913 webster

[4] : WordNet (r) 2.0

gear
     n 1: a toothed wheel that engages another toothed mechanism in
          order to change the speed or direction of transmitted
          motion syn: gear wheel, cogwheel
     2: a mechanism for transmitting motion by gears for some
        specific purpose as the steering gear of a vehicle syn:
         gear mechanism
     3: equipment consisting of miscellaneous articles needed for a
        particular operation or sport etc. syn: paraphernalia,
        appurtenances
     v : set the level or character of; "she pitched her speech to
         the teenagers in the audience" syn: pitch
see also:
gear wheel cogwheel gear mechanism paraphernalia appurtenances pitch 

[5] : Moby Thesaurus II by Grady Ward, 1.0

166 moby thesaurus words for "gear":
   hydromatic, accessories, accommodate, accouter, accouterments,
   action, adapt, adjust, apparatus, apparel, appendages, appliances,
   appoint, appointments, appurtenances, arm, armament, array, attire,
   automatic transmission, bag and baggage, baggage, bedizenment,
   belongings, chattels, clobber, clockworks, clothes, clothing, cog,
   cogwheel, conveniences, cordage, cording, costume, differential,
   differential gear, drapery, dress, dressing, drive train, duds,
   duffel, dunnage, effects, equip, equipage, equipment, facilities,
   facility, fashion, fatigues, feathers, fig, fit, fit out, fit up,
   fittings, fixtures, freewheel, furnish, furnishings, furniture,
   garb, garments, gear train, gearbox, gearing, gearshift, gearwheel,
   goods, guise, habiliment, habiliments, habit, heel, high,
   impedimenta, implements, innards, installations, intermediate,
   investiture, investment, junk, kit, linen, livery, low, luggage,
   machinery, man, materials, materiel, means, mechanism, motion,
   movement, movements, munition, munitions, neutral, outfit,
   overdrive, panoply, paraphernalia, plant, plumbing, possessions,
   power train, prepare, rack, rags, raiment, regalia, reverse, rig,
   rig out, rig up, rigging, robes, ropework, roping, running rigging,
   service, serving, servomechanism, shit, sportswear, staff,
   standard transmission, standing rigging, stick shift,
   stock-in-trade, stuff, style, suit, supplies, synchromesh, tack,
   tackle, tackling, tailor, things, threads, togs, toilette, tools,
   transmission, trappings, traps, trim, turn out, uniform, utensils,
   vestment, vestments, vesture, watchworks, wear, wearing apparel,
   wheels, wheels within wheels, whipping, workings, works

Gear >> G Words
Gear, definition of term: Gear
gear_pag1.html

Gear Wheel >> G Words
Gear Wheel, definition of term: Gear Wheel
gear+wheel_pag1.html

Gear Up >> G Words
Gear Up, definition of term: Gear Up
gear+up_pag1.html

Gear Mechanism >> G Words
Gear Mechanism, definition of term: Gear Mechanism
gear+mechanism_pag1.html

Planetary Gear >> P Words
Planetary Gear, definition of term: Planetary Gear
planetary+gear_pag1.html

Epicyclic Gear >> E Words
Epicyclic Gear, definition of term: Epicyclic Gear
epicyclic+gear_pag1.html