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filly

[ fil-ee ]
/ ˈfɪl i /
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noun, plural fil·lies.
a young female horse.
Informal. a girl or young woman.
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Origin of filly

First recorded in 1400–50; late Middle English fyly, from Old Norse fyla “female, foal”; see foal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use filly in a sentence

British Dictionary definitions for filly

filly
/ (ˈfɪlɪ) /

noun plural -lies
a female horse or pony under the age of four
informal, rare a spirited girl or young woman

Word Origin for filly

C15: from Old Norse fylja; related to Old High German fulihha; see foal
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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