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[uhn-moo r] /ʌnˈmʊər/
verb (used with object)
to loose (a vessel) from moorings or anchorage.
to bring to the state of riding with a single anchor after being moored by two or more.
verb (used without object)
(of a vessel) to become unmoored.
Origin of unmoor
First recorded in 1490-1500, unmoor is from the Middle English word unmooren. See un-2, moor2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for unmoor
Contemporary Examples
Historical Examples
  • Well, now, when you are ready I want you to unmoor her again.

    Major Vigoureux A. T. Quiller-Couch
  • Father is to come with us, and unmoor the boat, and help us to gather the water-lilies.

    The Children of Wilton Chase Mrs. L. T. Meade
  • Can we unmoor the Santa Margarita from inside the breakwater, or can we not?

    The Pursuit

    Frank (Frank Mackenzie) Savile
  • "After these transactions" Captain Morgan loosed his top-sail, as a signal to unmoor.

    On the Spanish Main John Masefield
  • Very shortly after, signal was made to unmoor, upon which a noise of "No—no—no!"

  • He therefore gave orders to unmoor, and every preparation was made for quitting the bay.

    Captain Cook W.H.G. Kingston
  • Half an hour later, show the bunting to unmoor; and send my boat ashore as soon as you begin to heave on the capstan.

    The Two Admirals J. Fenimore Cooper
  • Surely she might dare to wade out, unmoor the boat and climb in—if but opportunity were granted her!

    The Bandbox Louis Joseph Vance
  • On the 16th June the signal was made to unmoor; and soon after, for the squadron to weigh.

British Dictionary definitions for unmoor


/ʌnˈmʊə; -ˈmɔː/
verb (nautical)
to weigh the anchor or drop the mooring of (a vessel)
(transitive) to reduce the mooring of (a vessel) to one anchor
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
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Word Origin and History for unmoor

late 15c., "to free from moorings," from un- (2) + moor (v.). Related: Unmoored.

Online Etymology Dictionary, © 2010 Douglas Harper
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