• synonyms


[las-oh, la-soo]
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noun, plural las·sos, las·soes.
  1. a long rope or line of hide or other material with a running noose at one end, used for roping horses, cattle, etc.
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verb (used with object), las·soed, las·so·ing.
  1. to catch with or as with a lasso.
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Origin of lasso

1760–70; < Spanish lazo < Latin laqueus noose, bond; see lace
Related formslas·so·er, nounun·las·soed, adjective


  1. Orlando di [dee] /di/, Orlandus Lassus, 1532–94, Flemish composer.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for lasso


noun plural -sos or -soes
  1. a long rope or thong with a running noose at one end, used (esp in America) for roping horses, cattle, etc; lariat
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verb -sos, -soes, -soing or -soed
  1. (tr) to catch with or as if with a lasso
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Derived Formslassoer, noun

Word Origin

C19: from Spanish lazo, ultimately from Latin laqueus noose
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

Word Origin and History for lasso

1807 (v.); 1808 (n.), American English, from Spanish lazo, from Latin laqueum (nominative laqueus) "noose, snare" (see lace (n.)).

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Online Etymology Dictionary, © 2010 Douglas Harper