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

giant \gi"ant\, n. oe. giant, geant, geaunt, of. jaiant, geant,
   f. g'eant, l. gigas, fr. gr. ?, ?, from the root of e.
   gender, genesis. see gender, and cf. gigantic.
   1913 webster
   1. a man of extraordinari bulk and stature.
      1913 webster

            giants of mighty bone and bold emprise. --milton.
      1913 webster

   2. a person of extraordinary strength or powers, bodily or
      intellectual.
      1913 webster

   3. any animal, plant, or thing, of extraordinary size or
      power.
      1913 webster

   giant's causeway, a vast collection of basaltic pillars, in
      the county of antrim on the northern coast of ireland.
      1913 webster
see also:
gender gigantic giant's causeway 

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

giant \gi"ant\, a.
   like a giant; extraordinary in size, strength, or power; as,
   giant brothers; a giant son.
   1913 webster

   giant cell. anat. see myeloplax.

   giant clam zool., a bivalve shell of the genus
      tridacna, esp. t. gigas, which sometimes weighs 500
      pounds. the shells are sometimes used in churches to
      contain holy water.

   giant heron zool., a very large african heron ardeomega
      goliath. it is the largest heron known.

   giant kettle, a pothole of very large dimensions, as found
      in norway in connection with glaciers. see pothole.

   giant powder. see nitroglycerin.

   giant puffball bot., a fungus lycoperdon giganteum,
      edible when young, and when dried used for stanching
      wounds.

   giant salamander zool., a very large aquatic salamander
      megalobatrachus maximus, found in japan. it is the
      largest of living amphibia, becoming a yard long.

   giant squid zool., one of several species of very large
      squids, belonging to architeuthis and allied genera.
      some are over forty feet long.
      1913 webster
see also:
giant cell myeloplax giant clam tridacna t. gigas giant heron 
ardeomega goliath giant kettle pothole giant powder nitroglycerin 
giant puffball lycoperdon giganteum giant salamander megalobatrachus maximus giant squid 
architeuthis 

[3] : WordNet (r) 2.0

giant
     adj : of great mass; huge and bulky; "a jumbo jet"; "jumbo shrimp"
           syn: elephantine, gargantuan, jumbo
     n 1: any creature of exceptional size
     2: a person of exceptional importance and reputation syn: colossus,
         behemoth, heavyweight, titan
     3: an unusually large enterprise; "walton built a retail giant"
     4: a very large person; impressive in size or qualities syn: hulk,
         heavyweight, whale
     5: someone or something that is abnormally large and powerful
        syn: goliath, behemoth, monster, colossus
     6: an imaginary figure of superhuman size and strength; appears
        in folklore and fair tales
     7: a very bright star of large diameter and low density
        relative to the sun syn: giant star
see also:
elephantine gargantuan jumbo colossus behemoth heavyweight 
titan hulk whale goliath monster 
giant star 

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

89 moby thesaurus words for "giant":
   amazon, antaeus, atlantean, atlas, briareus, brobdingnagian,
   charles atlas, cyclopean, cyclops, gargantua, gargantuan, goliath,
   herculean, hercules, homeric, orion, polyphemus, samson, superman,
   tarzan, titan, abysmal, amazon, astronomic, bean pole, behemoth,
   bully, bullyboy, colossal, colossus, cyclopean, cyclops,
   elephantine, enormous, epic, gangling, gangly, gargantuan,
   giantlike, gigantic, gorilla, grenadier, gross, heroic, huge,
   hulking, immense, infinite, jumbo, lank, lanky, leggy, lengthy,
   leviathan, long, long-legged, longlegs, longshanks, mammoth,
   mighty, monster, monstrous, monumental, mountainous, muscle man,
   ogre, powerhouse, prodigious, profound, rangy, seven-footer,
   stalwart, statuesque, strong man, strong-arm man, stupendous,
   superhuman, tall, the mighty, the strong, titan, titanic, tough,
   tough guy, tower of strength, towering, tremendous, vast, whale

Giant >> G Words
Giant, definition of term: Giant
giant_pag1.html

Giant Star >> G Words
Giant Star, definition of term: Giant Star
giant+star_pag1.html

Giant Panda >> G Words
Giant Panda, definition of term: Giant Panda
giant+panda_pag1.html

Giant Squid >> G Words
Giant Squid, definition of term: Giant Squid
giant+squid_pag1.html