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

  • transitive v. To make or become cheerful.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To become happier.
  • adj. lively; cheerful; in good spirits

from the GNU version of the Collaborative International Dictionary of English

  • adj. Lively; cheerful; in good spirits.
  • intransitive v. To shriek; to gnash; to utter harsh or shrill cries.
  • intransitive v. To chirp like a bird.
  • transitive v. To cheer; to enliven.

from The Century Dictionary and Cyclopedia

  • To creak; shriek; groan.
  • To make a noise, as a bird; chirp.
  • Also spelled cherk.
  • To be or become cheerful.
  • Lively; cheerful; pert; in good spirits.
  • n. A perverted form of chert.

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

  • v. make a shrill creaking, squeaking, or noise, as of a door, mouse, or bird


Middle English chirken, to chirp, chirrup, from Old English cearcian, to chatter, alteration of cracian, to resound; see crack.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • Chirk, chirk, chirk, it went, the sound of a spoon being rapidly whisked round a basin.

    The Invisible Man

  • Ayla lay awake under the starlit sky, staring up at the patterns of constellations and listening to the night sounds: the wind sifting through the trees, the soft liquid running of the river, the chirk of crickets, the harsh harumph of a bullfrog.

    The Plains of Passage

  • Mr. Haynes told me that if I would "chirk up" he would give me his elk teeth.

    Letters on an Elk Hunt

  • Just before dinner time I donned a becoming gown to chirk up my courage, groped my way down the long, dim stairs, and telephoned to Von Gerhard.

    Dawn O'Hara, the Girl Who Laughed

  • Now, you chirk up, Boston, and smile and try to be a good sport, or I'll work you over and make a man out of you.

    The Long Chance

  • Five dollars would make me chirk up; ten would start a slight smile; twenty would put a beam in mine eye; fifty would cause me to utter shrill cries of unadulterated joys and a hundred would inspire me to actions like unto those of a whirling dervish.

    The Valley of the Giants

  • Not that anyone in particular expected "them poor Hayneses" to keep bright or "chirk up."

    The Best Short Stories of 1917 and the Yearbook of the American Short Story

  • And such was the power of mercury and mind combined over matter that he would immediately chirk up and feel warm.

    Europe Revised

  • It's only when you come she seems to chirk up a bit.

    Anne of Avonlea

  • We were in the very centre of a prairie-dog town, but before I could formulate in my mind the probabilities of holes and broken legs, the chirk, chirk, chirking had fallen astern.

    Arizona Nights

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