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.
April and October fall within the spring and autumn seasons, offering pleasant weather conditions that are ideal for exploring the picturesque island. Roger Sands, Forbes, 17 Jan. 2025 Filming started on a second series in the autumn, the tabloid said, but 51-year-old Fielding did not return after the Holidays. Lily Ford, The Hollywood Reporter, 16 Jan. 2025 In the autumn of 2020, the Bobcat Fire burned all the way across the range from north to south, torching 100,000-plus acres. Andrew Moseman, The Atlantic, 15 Jan. 2025 In the autumn, deadly floods wreaked havoc along an arc from Spain to the Balkans, and from Morocco to Libya. Samuel Granados, New York Times, 14 Jan. 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 22 Jan. 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

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