A giant is someone that's unusually enormous. You can also use the word giant to describe something or someone that is really big. That giant green guy over there? That's the jolly green giant. Ho ho ho.

A star basketball player might be described as a giant, or a stunningly tall redwood tree, or even a very large business. These giants come from the giants of mythology, huge creatures that are featured in fairy and folk tales and inspired by the giants of Greek myth, who were a separate race of strong, aggressive gods. The Greek root is Gigas, with the plural form Gigantes.

Definitions of giant
  1. noun
    any creature of exceptional size
    see moresee less
    type of:
    animal, animate being, beast, brute, creature, fauna
    a living organism characterized by voluntary movement
  2. noun
    a very large person; impressive in size or qualities
    synonyms: heavyweight, hulk, whale
    see moresee less
    type of:
    large person
    a person of greater than average size
  3. noun
    someone or something that is abnormally large and powerful
    synonyms: behemoth, colossus, goliath, monster
    see moresee less
    type of:
    anomaly, unusual person
    a person who is unusual
  4. noun
    an imaginary figure of superhuman size and strength; appears in folklore and fairy tales
    see moresee less
    show 7 types...
    hide 7 types...
    (Greek mythology) a giant with 100 eyes; was guardian of the heifer Io and was slain by Hermes
    (Greek mythology) one of a race of giants having a single eye in the middle of their forehead
    a female giant
    (folklore) a giant who likes to eat human beings
    Jotun, Jotunn
    (Norse mythology) one of a race of giants often in conflict with the Aesir
    (Norse mythology) giant who lives in the roots of Yggdrasil and guards the well of wisdom
    (folklore) a female ogre
    type of:
    imaginary being, imaginary creature
    a creature of the imagination; a person that exists only in legends or myths or fiction
  5. noun
    a person of exceptional importance and reputation
    synonyms: behemoth, colossus, heavyweight, titan
    see moresee less
    type of:
    important person, influential person, personage
    a person whose actions and opinions strongly influence the course of events
  6. noun
    an unusually large enterprise
    “Walton built a retail giant
    see moresee less
    type of:
    an organization created for business ventures
  7. noun
    a very bright star of large diameter and low density (relative to the Sun)
    synonyms: giant star
    see moresee less
    the 4th brightest star and the brightest star in the constellation Bootes; 36 light-years from Earth
    the brightest star in Auriga
    type of:
    (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
  8. adjective
    of great mass; huge and bulky
    synonyms: elephantine, gargantuan, jumbo
    big, large
    above average in size or number or quantity or magnitude or extent
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week