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autumn

[ aw-tuhm ]
/ ˈɔ təm /
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noun

the season between summer and winter; fall. In the Northern Hemisphere it is from the September equinox to the December solstice; in the Southern Hemisphere it is from the March equinox to the June solstice.
a time of full maturity, especially the late stages of full maturity or, sometimes, the early stages of decline: to be in the autumn of one's life.

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Origin of autumn

1325–75; <Latin autumnus; replacing Middle English autumpne<Middle French autompne<Latin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for autumn

autumn
/ (ˈɔːtəm) /

noun

(sometimes capital)
  1. Also called (esp US): fall the season of the year between summer and winter, astronomically from the September equinox to the December solstice in the N hemisphere and from the March equinox to the June solstice in the S hemisphere
  2. (as modifier)autumn leaves
a period of late maturity, esp one followed by a decline
C14: from Latin autumnus, perhaps of Etruscan origin
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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