WordReference Random House Learner's Dictionary of American English © 2015
cau•tion /ˈkɔʃən/USA pronunciation n. 
  1. [uncountable] alertness in a dangerous situation;
    care: Proceed with caution.
  2. [countable] a warning against danger or evil:The referee issued several cautions to the boxer during the match.

  • to give advice (to); to give a warning (to): [no object]I would caution against optimism.[+ object]The referee cautioned him about his penalties.[+ object + to + verb]I caution you not to over-exercise.[+ object + that clause]They cautioned her that she would lose her driver's license.
  • See -caut-.

    Collins Concise English Dictionary © HarperCollins Publishers::

    caution /ˈkɔːʃən/ n
    1. care, forethought, or prudence, esp in the face of danger; wariness
    2. something intended or serving as a warning; admonition
    3. chiefly Brit a formal warning given to a person suspected or accused of an offence that his words will be taken down and may be used in evidence
    4. informal an amusing or surprising person or thing
    1. (transitive) to urge or warn (a person) to be careful
    2. (transitive) chiefly Brit to give a caution to (a person)
    3. (intransitive) to warn, urge, or advise: he cautioned against optimism
    Etymology: 13th Century: from Old French, from Latin cautiō, from cavēre to beware

    'caution' also found in these entries:

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