noun au·tumn \ˈ-təm\

: the season between summer and winter

: the later part of someone's life or of something's existence

Full Definition of AUTUMN

:  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
:  a period of maturity or incipient decline <in the autumn of life>
au·tum·nal \-ˈtəm-nəl\ adjective
au·tum·nal·ly \-nə-lē\ adverb

Examples of AUTUMN

  1. in the autumn of last year
  2. a magnificent New England autumn
  3. She went off to college in the autumn of 1999.
  4. When autumn came he planted grass.

Origin of AUTUMN

Middle English autumpne, from Latin autumnus
First Known Use: 14th century

Other Calendar Terms

antedate, estival, gloaming, luster, sesquicentennial


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