autumn

noun

au·​tumn ˈȯ-təm How to pronounce autumn (audio)
1
: the season between summer and winter comprising in the northern hemisphere usually the months of September, October, and November or as reckoned astronomically extending from the September equinox to the December solstice

called also fall

2
: a period of maturity or incipient decline
in the autumn of life

Examples of autumn in a Sentence

in the autumn of last year a magnificent New England autumn She went off to college in the autumn of 1999. When autumn came he planted grass.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Lenox, Massachusetts A mix of idyllic villages and pristine nature with a thriving art scene thrown in for good measure, The Berkshires region is dotted with lakes, mountains, and crimson and butterscotch leaves that tinge the autumn terrain. Allison Tibaldi, USA Today, 20 Sep. 2025 This autumn, Target is overflowing with fall knits. Melody Kazel, PEOPLE, 20 Sep. 2025 Spring is the perfect time to visit as the rolling hills are bursting with wildflowers, while autumn offers a lineup of festivals, including the Washington County Fair, Texas Arts & Music Festival, and La Bahia Antiques Fall Show. Gabi De La Rosa, Southern Living, 20 Sep. 2025 Swimsuits become a steal once autumn rolls around, and rain boots typically see a hefty price cut during summer. Amelia McBride, Travel + Leisure, 19 Sep. 2025 See All Example Sentences for autumn

Word History

Etymology

Middle English autumpne, borrowed from Anglo-French autompne, borrowed from Latin autumnus (also an adjective, "autumnal"), perhaps a borrowing from Etruscan

Note: Ernout and Meillet (Dictionaire étymologique de la langue latine) regard an Etruscan origin as definite ("sans doute") and compare the form to Vertumnus/Vortumnus, claimed by Varro to be an Etruscan god. (The Romans regarded Vertumnus as a god of the changing seasons, by association with the verb vertere "to turn.")

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of autumn was in the 15th century

Cite this Entry

“Autumn.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/autumn. Accessed 24 Sep. 2025.

Kids Definition

autumn

noun
au·​tumn ˈȯt-əm How to pronounce autumn (audio)
1
: the season between summer and winter including in the northern hemisphere usually the months of September, October, and November

called also fall

2
: a time late in an existence
in the autumn of life
autumnal adjective

More from Merriam-Webster on autumn

Last Updated: - Updated example sentences
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