Definition of


  1. (noun, time) the central and most intense or profound part
    in the deep of winter
  2. (noun, object) a long steep-sided depression in the ocean floor
  3. (noun, object) literary term for an ocean
  4. (adj, all) relatively deep or strong; affecting one deeply
    a deep sigh
    deep concentration
    deep emotion
    a deep trance
    in a deep sleep
  5. (adj, all) marked by depth of thinking
    a deep allegory
  6. (adj, all) having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center; sometimes used in combination
    a deep dive
    deep water
    a deep casserole
    a deep gash
    deep massage
    deep pressure receptors in muscles
    deep shelves
    a deep closet
    surrounded by a deep yard
    hit the ball to deep center field
    in deep space
  7. (adj, all) very distant in time or space
    deep in enemy territory
    deep in the woods
    a deep space probe
  8. (adj, all) extreme
    deep happiness
  9. (adj, all) having or denoting a low vocal or instrumental range
    a bass voice is lower than a baritone voice
    a bass clarinet
  10. (adj, all) strong; intense
    a rich red
  11. (adj, all) relatively thick from top to bottom
    deep snow
  12. (adj, all) extending relatively far inward
  13. (adj, all) (of darkness) very intense
    thick darkness
    a face in deep shadow
    deep night
  14. (adj, all) large in quantity or size
  15. (adj, all) with head or back bent low
  16. (adj, all) of an obscure nature
    a deep dark secret
    the inscrutable workings of Providence
    in its mysterious past it encompasses all the dim origins of life
    rituals totally mystifying to visitors from other lands
  17. (adj, all) difficult to penetrate; incomprehensible to one of ordinary understanding or knowledge
    a deep metaphysical theory
    some recondite problem in historiography
  18. (adj, all) exhibiting great cunning usually with secrecy
    a deep plot
  19. (adv, all) to a great depth;far down
    dug deep
  20. (adv, all) to an advanced time
    talked late into the evening
  21. (adv, all) to a great distance
    went deep into the woods

via WordNet, Princeton University

Antonyms of Deep


Alternate forms of Deep

Derivations: deep, deepness

Hypernyms: depression, middle, natural depression, ocean

Origin of the word Deep

  1. O.E. deop, from P.Gmc. *deupaz, from PIE *d(e)u- "deep, hollow" (cf. O.C.S. duno "bottom, foundation," O.Ir. domun "world," via sense development from "bottom" to "foundation" to "earth" to "world"). Figurative sense was in O.E.; extended 16c. to color, sound. Deep pocket "wealth" is from 1951. Deep-freeze was a registered tradem… more

via Online Etymology Dictionary, ©2001 Douglas Harper

Words that sound like Deep

dab, daba, daffo, dative, daub, davy, day off, dayboy, db, dba, deaf, deb, defoe, defy, deify, devi, dhava, die off, dip, diva, dive, divvy, divvy up, do by, do up, doff, doo-wop, doob, dopa, dope

via soundex() Hash Matches

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Word of the Moment

Jean Francois Champollion

Frenchman and Egyptologist who studied the Rosetta Stone and in 1821 became the first person to decipher Egyptian hieroglyphics (1790-1832)