fil·​ly | \ˈfi-lē \
plural fillies

Definition of filly 

1 : a young female horse usually of less than four years

2 : a young woman : girl

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Synonyms for filly


girl, lass, lassie, miss, missy

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Examples of filly in a Sentence

she's still a filly, so she has plenty of time to decide what she wants to do in life

Recent Examples on the Web

Belmont: $100,000 River Memories Stakes, fillies and mares 4 and up, 1 ½ miles on turf. John Cherwa,, "Racing! Here’s hoping for even cooler temperatures," 10 July 2018 In the fourth, a $33,000 maiden special weight for 2-year-old fillies, Emcee Stable, Matt Strzepka and Brian McKenzie's Margie is Livid ($7.60) was a front-running neck winner in 1:02.80 for 5½ furlongs., "Digest (June 24): Brigade keep AFL lead despite loss to Empire," 24 June 2018 Churchill: Grade 3 $100,000 Winning Colors Stakes, fillies and mares 3 and up. John Cherwa,, "Racing! Omaha is 11th in Triple Crown poll," 27 May 2018 The main stakes race is the Grade 2 $200,000 Summertime Oaks for 3-year-old fillies going 1 1/16 miles. John Cherwa,, "Racing! A special handicapping lesson on European tracks," 16 June 2018 The Oaks is the fillies' equivalent of The Derby, a mile-and-a-half test over the undulating Downs of Epsom, south of London. Rob Hodgetts, CNN, "Why the Derby, Oaks, Guineas and St. Leger are known as the Classics," 4 May 2018 It is joined by the Nellie Mae Cox at 1 mile and M. Tyson Gilpin at 5½ furlongs, each for fillies and mares, and the 5½-furlong White Oak Farm., "Digest (June 22): Team Maryland roster announced for Big 26 Classic," 22 June 2018 The 7-furlong Concern for 3-year-olds is one of two stakes on the 11-race program along with the $100,000 Stormy Blues for 3-year-old fillies over Laurel's turf course, the richest stakes of the 40-day summer meet., "Digest (July 4): Midnight Poker dealing going into Laurel Park feature," 4 July 2018 The Black-Eyed Susan Stakes is a race for 3-year-old fillies and will run on Friday, May 18. Justin Sayers, The Courier-Journal, "Here's how you can watch, stream or listen to the Preakness 2018," 15 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'filly.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of filly

15th century, in the meaning defined at sense 1

History and Etymology for filly

Middle English fyly, from Old Norse fylja; akin to Old English fola foal

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Statistics for filly

Last Updated

30 Oct 2018

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Time Traveler for filly

The first known use of filly was in the 15th century

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English Language Learners Definition of filly

: a young female horse


fil·​ly | \ˈfi-lē \
plural fillies

Kids Definition of filly

: a young female horse

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Comments on filly

What made you want to look up filly? Please tell us where you read or heard it (including the quote, if possible).


playful or foolish behavior

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