Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Having sharp, bright eyes; keen-sighted.
  • adj. Mentally acute or perceptive.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having clear, sharp sight
  • adj. Mentally acute and perspicacious

from the GNU version of the Collaborative International Dictionary of English

  • adj. Acutely perceptive or discerning.

from The Century Dictionary and Cyclopedia

  • Having clear, bright eyes; clear-sighted; possessing acute and penetrating vision; hence, mentally acute or discerning.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. mentally acute or penetratingly discerning

Etymologies

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Examples

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