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

  • n. A period of 30 minutes.
  • n. The middle point of an hour: The clock chimes on the half-hour.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A period of time equal to thirty minutes.
  • n. The time of thirty minutes past any particular hour.

from The Century Dictionary and Cyclopedia

  • n. A period of thirty minutes.

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

  • n. a half of an hour


half- +‎ hour (Wiktionary)



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