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From Old French automne, from Latin autumnus, whence also Italian autunno.



autumn ‎(plural autumns)

Autumn in the United States
  1. Traditionally the third of the four seasons, when deciduous trees lose their leaves; typically regarded as being from September 24 to December 22 in parts of the Northern Hemisphere, and the months of March, April and May in the Southern Hemisphere.
    • 1918, W. B. Maxwell, chapter 22, in The Mirror and the Lamp:
      In the autumn there was a row at some cement works about the unskilled labour men. A union had just been started for them and all but a few joined. One of these blacklegs was laid for by a picket and knocked out of time.

Usage notes[edit]

  • Note that season names are usually spelled in all lowercase letters in English. This is contrast to the days of the week and months of the year, which are always spelled with a capitalized first letter, for example Thursday or September.


Derived terms[edit]

Related terms[edit]



autumn ‎(not comparable)

  1. Of or relating to autumn; autumnal
    autumn leaves
    • 1915, Emerson Hough, The Purchase Price, chapterI:
      Serene, smiling, enigmatic, she faced him with no fear whatever showing in her dark eyes. The clear light of the bright autumn morning had no terrors for youth and health like hers.


See also[edit]

Seasons in English · seasons (layout · text)
spring summer fall, autumn winter