WordReference Random House Learner's Dictionary of American English © 2017
smart /smɑrt/USA pronunciation   v.,  -er, -est, adv., n. 
v. [no object]
  1. to be a cause of sharp, stinging pain:The cut on his arm still smarted.
  2. to suffer sharply, as from wounded feelings:still smarting from the insults.

  1. having or showing quick intelligence or ready mental capability:a smart student.[It + be + ~ + to + verb]It wasn't very smart of you to try to cheat.
  2. shrewd or sharp, as a person in dealing with others:a smart campaigner.
  3. clever or witty, as a speaker or speech.
  4. neat or trim in appearance, as a person or garment;
    spruce:a very smart outfit.
  5. socially elegant;
    sophisticated or fashionable:the smart crowd.
  6. saucy;
    pert:Keep your smart remarks to yourself.
  7. brisk or vigorous:to walk with smart steps.
  8. sharply severe, as a blow;
    sharp or keen:a smart pain; a smart slap on the arm.
  9. equipped with, using, or containing electronic control devices:[often before a noun]smart bombs.
  10. Computingintelligent (def. 3).

  1. in a smart manner;

  1. [countable;  usually: a + ~] a sharp local pain.
  2. smarts, [uncountable;  used with a singular verb][Informal.]intelligence;
    common sense:has a lot of smarts.
smart•ly, adv.: to dress smartly; She rapped smartly on the door.
smart•ness, n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2017
smart  (smärt),USA pronunciation v., adj.,  -er, -est, adv., n. 
  1. to be a source of sharp, local, and usually superficial pain, as a wound.
  2. to be the cause of a sharp, stinging pain, as an irritating application, a blow, etc.
  3. to feel a sharp, stinging pain, as in a wound.
  4. to suffer keenly from wounded feelings:She smarted under their criticism.
  5. to feel shame or remorse or to suffer in punishment or in return for something.

  1. to cause a sharp pain to or in.

  1. quick or prompt in action, as persons.
  2. having or showing quick intelligence or ready mental capability:a smart student.
  3. shrewd or sharp, as a person in dealing with others or as in business dealings:a smart businessman.
  4. clever, witty, or readily effective, as a speaker, speech, rejoinder, etc.
  5. dashingly or impressively neat or trim in appearance, as persons, dress, etc.
  6. socially elegant;
    sophisticated or fashionable:the smart crowd.
  7. saucy;
    pert:smart remarks.
  8. sharply brisk, vigorous, or active:to walk with smart steps.
  9. sharply severe, as a blow, stroke, etc.
  10. sharp or keen:a smart pain.
  11. [Informal.]equipped with, using, or containing electronic control devices, as computer systems, microprocessors, or missiles:a smart phone; a smart copier.
  12. Computingintelligent (def. 4).
  13. [Older Use.]considerable;
    fairly large.

  1. in a smart manner;

  1. a sharp local pain, usually superficial, as from a wound, blow, or sting.
  2. keen mental suffering, as from wounded feelings, affliction, grievous loss, etc.
  3. smarts, [Slang.]intelligence;
    common sense:He never had the smarts to use his opportunities.
smarting•ly, adv. 
smartly, adv. 
smartness, n. 
  • bef. 1050; (verb, verbal) Middle English smerten, Old English -smeortan (only in the compound fyrsmeortende painful like fire), cognate with Old High German smerzan (German schmerzen); (adjective, adjectival) Middle English smerte, smart quick, prompt, sharp, origin, originally, biting, smarting, late Old English smearte, akin to the verb, verbal; (adverb, adverbial and noun, nominal) Middle English smerte, derivative of the adjective, adjectival
    • 1.See corresponding entry in Unabridged pain, hurt, sting.
    • 7.See corresponding entry in Unabridged lively, nimble, agile, alert, active.
    • 8.See corresponding entry in Unabridged bright, sharp, expert, adroit.
    • 9.See corresponding entry in Unabridged cunning, adept.
    • 11.See corresponding entry in Unabridged spruce;
      pretentious, showy.
    • 12.See corresponding entry in Unabridged chic.
    • 14.See corresponding entry in Unabridged energetic.
    • 16.See corresponding entry in Unabridged stinging, poignant, penetrating.
    • 8.See corresponding entry in Unabridged stupid.

Collins Concise English Dictionary © HarperCollins Publishers::

smart /smɑːt/ adj
  1. astute, as in business; clever or bright
  2. quick, witty, and often impertinent in speech: a smart talker
  3. fashionable; chic: a smart hotel
  4. well-kept; neat
  5. causing a sharp stinging pain
  6. vigorous or brisk
  7. (of systems) operating as if by human intelligence by using automatic computer control
  8. (of a projectile or bomb) containing a device that allows it to be guided to its target
vb (mainly intr)
  1. to feel, cause, or be the source of a sharp stinging physical pain or keen mental distress: a nettle sting smarts, he smarted under their abuse
  2. (often followed by for) to suffer a harsh penalty
  1. a stinging pain or feeling
  1. in a smart manner
Etymology: Old English smeortan; related to Old High German smerzan, Latin mordēre to bite, Greek smerdnos terrible

ˈsmartly adv ˈsmartness n

Smart /smɑːt/ n
  1. Christopher. 1722–71, British poet, author of A Song to David (1763) and Jubilate Agno (written 1758–63, published 1939). He was confined (1756–63) for religious mania and died in a debtors' prison

'smart' also found in these entries:
Collocations: that (really) smarts, is a smart [student, child], my [knee, cut, injury] (really) smarts, more...

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