[haf-moon, hahf-]
See more synonyms for halfmoon on Thesaurus.com

Origin of halfmoon

First recorded in 1490–1500; half + moon


[haf-moon, hahf-]
  1. the moon when, at either quadrature, half its disk is illuminated.
  2. the phase of the moon at this time.
  3. something having the shape of a half-moon or crescent.

Origin of half-moon

late Middle English word dating back to 1375–1425
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for halfmoon

Historical Examples of halfmoon

  • It was past ten when the phaeton turned into Halfmoon Street.

    Aurora Floyd, Vol. III (of 3)

    M. E. (Mary Elizabeth) Braddon

  • He went away from Halfmoon Street with reassurances for the countess.

    The Vanity Girl

    Compton Mackenzie

  • I'll ride to Halfmoon Flat for the constable and a posse to put a stop to this.

    The Heritage of the Hills

    Arthur P. Hankins

  • Half an hour later they stepped to the deck of the Halfmoon.

    The Mucker

    Edgar Rice Burroughs

  • It almost changed his estimate of the passenger of the Halfmoon.

    The Mucker

    Edgar Rice Burroughs

British Dictionary definitions for halfmoon


  1. the moon at first or last quarter when half its face is illuminated
  2. the time at which a half-moon occurs
    1. something shaped like a half-moon
    2. (as modifier)half-moon spectacles
  3. anatomy a nontechnical name for lunula
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012