The Collaborative International Dictionary of English v.0.48:

Crescent \Cres"cent\ (kr[e^]s"sent), n. [OE. cressent,
   cressaunt, crescent (in sense 1), OF. creissant increasing,
   F. croissant, p. pr. of cro[^i]tre, OF. creistre, fr. L.
   crescere to increase, v. incho.; akin to creare to create.
   See Create, and cf. Accrue, Increase, Crescendo.]
   1. The increasing moon; the moon in her first quarter, or
      when defined by a concave and a convex edge; also, applied
      improperly to the old or decreasing moon in a like state.
      [1913 Webster]

   2. Anything having the shape of a crescent or new moon.
      [1913 Webster]

   3. A representation of the increasing moon, often used as an
      emblem or badge; as:
      (a) A symbol of Artemis, or Diana.
      (b) The ancient symbol of Byzantium or Constantinople.
          Hence:
      (c) The emblem of the Turkish Empire, adopted after the
          taking of Constantinople.
          [1913 Webster]

                The cross of our faith is replanted,
                The pale, dying crescent is daunted. --Campbell.
          [1913 Webster]

   4. Any one of three orders of knighthood; the first
      instituted by Charles I., king of Naples and Sicily, in
      1268; the second by Ren['e] of Anjou, in 1448; and the
      third by the Sultan Selim III., in 1801, to be conferred
      upon foreigners to whom Turkey might be indebted for
      valuable services. --Brande & C.
      [1913 Webster]

   5. (Her.) The emblem of the increasing moon with horns
      directed upward, when used in a coat of arms; -- often
      used as a mark of cadency to distinguish a second son and
      his descendants.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Crescent \Cres"cent\ (kr[e^]s"sent), a.
   1. Shaped like a crescent.
      [1913 Webster]

            Astarte, queen of heaven, with crescent horns.
                                                  --Milton.
      [1913 Webster]

   2. Increasing; growing.
      [1913 Webster]

            O, I see the crescent promise of my spirit hath not
            set.                                  --Tennyson.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Crescent \Cres"cent\, v. t.
   1. To form into a crescent, or something resembling a
      crescent. [R.] --Anna Seward.
      [1913 Webster]

   2. To adorn with crescents.
      [1913 Webster]

WordNet (r) 3.0 (2006):

crescent
    adj 1: resembling the new moon in shape [syn: crescent(a),
           crescent-shaped, semilunar, lunate]
    n 1: any shape resembling the curved shape of the moon in its
         first or last quarters

Moby Thesaurus II by Grady Ward, 1.0:

276 Moby Thesaurus words for "crescent":
   Autobahn, Cynthian, S-shaped, US highway, achievement, alerion,
   alley, alleyway, animal charge, annulet, argent, armorial bearings,
   armory, arms, arterial, arterial highway, arterial street, artery,
   artificial satellite, autoroute, autostrada, avenue, azure,
   bandeau, bar, bar sinister, baton, bearings, belt highway, bend,
   bend sinister, biconcave, bicorn, billet, blazon, blazonry,
   blind alley, blooming, blossoming, bordure, boulevard, broad arrow,
   budding, burgeoning, bypass, byway, cadency mark, camino real,
   canton, carriageway, causeway, causey, chaplet, charge, chaussee,
   chevron, chief, circle, circumferential, circus, close,
   coat of arms, cockatrice, corduroy road, corniform, coronet,
   county road, court, crescendoing, crescent moon, crescent-shaped,
   crescentic, crescentiform, crescentlike, crest, cross,
   cross moline, crown, cul-de-sac, dead-end street, decrescent,
   decrescent moon, demilune, developed, device, difference,
   differencing, dike, dirt road, drive, driveway, eagle, ermine,
   ermines, erminites, erminois, escutcheon, expanding, expressway,
   falcate, falciform, falcon, fess, fess point, field, file, flanch,
   fleur-de-lis, florescent, flourishing, flowering, freeway, fret,
   full moon, full-fledged, full-grown, fully developed, fur, fusil,
   garland, gibbous moon, gravel road, griffin, growing, grown,
   grown-up, gules, gyron, half circle, half-moon, harvest moon,
   hatchment, helmet, hemicycle, heraldic device, highroad, highway,
   highways and byways, honor point, horn-shaped, horned, horseshoe,
   hypertrophied, impalement, impaling, increasing, incremental,
   increscent, increscent moon, inescutcheon, intensifying,
   interstate highway, label, lane, lengthening, lion, local road,
   lozenge, lunar, lunate, lunette, luniform, lunula, lunular, lunule,
   main drag, main road, mantling, marshaling, martlet, mascle,
   mature, menisciform, meniscoid, meniscus, metal, mews, moon,
   moon-shaped, moonlike, motorway, motto, mullet, multiplying,
   new moon, nombril point, octofoil, on the increase, or,
   orb of night, ordinary, orle, overdeveloped, overgrown, pale, paly,
   parkway, pave, paved road, pean, pheon, pike, place, plank road,
   primary highway, private road, proliferating, purpure, quadrant,
   quarter, quartering, queen of heaven, queen of night, right-of-way,
   ring road, road, roadbed, roadway, rose, route nationale, row,
   royal road, sable, saltire, satellite, scutcheon, scythe,
   secondary road, sector, semicircle, semicircular, semilunar,
   sextant, shield, sickle, sickle-like, sickle-shaped, sigmoid,
   silvery moon, snowballing, speedway, spread eagle, spreading,
   sprouting, state highway, street, subordinary, superhighway,
   swelling, tenne, terrace, the wandering Moon, thoroughfare,
   thriving, through street, thruway, tightening, tincture, toll road,
   torse, township road, tressure, turnpike, two-horned, unicorn,
   vair, vert, waning crescent moon, waning moon, waxing,
   waxing crescent moon, waxing moon, wet moon, wreath, wynd, yale



U.S. Gazetteer Places (2000):

Crescent, OK -- U.S. city in Oklahoma
   Population (2000):    1281
   Housing Units (2000): 639
   Land area (2000):     1.062028 sq. miles (2.750640 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.062028 sq. miles (2.750640 sq. km)
   FIPS code:            18250
   Located within:       Oklahoma (OK), FIPS 40
   Location:             35.953137 N, 97.594593 W
   ZIP Codes (1990):     73028
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Crescent, OK
    Crescent


U.S. Gazetteer Places (2000):

Crescent, IA -- U.S. city in Iowa
   Population (2000):    537
   Housing Units (2000): 195
   Land area (2000):     1.257763 sq. miles (3.257592 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.257763 sq. miles (3.257592 sq. km)
   FIPS code:            17175
   Located within:       Iowa (IA), FIPS 19
   Location:             41.363656 N, 95.858789 W
   ZIP Codes (1990):     51526
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Crescent, IA
    Crescent