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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use autumn in a sentence
One afternoon we were watching Ingmar Bergman's autumn Sonata.Alfred Hitchcock’s Fade to Black: The Great Director’s Final Days | David Freeman | December 13, 2014 | THE DAILY BEAST
From the first shots of autumn Sonata it's clear that this is going to be slow going.Alfred Hitchcock’s Fade to Black: The Great Director’s Final Days | David Freeman | December 13, 2014 | THE DAILY BEAST
Standing in the chill breeze of autumn, I knew something had passed between us.
The summer heat is fleeting, and the crisp golden brown of autumn lingers just a little bit longer than it should.Jason Schwartzman Is the Nicest Jerk You’ll Ever Meet in ‘Listen Up Philip’ | Emma Myers | October 17, 2014 | THE DAILY BEAST
Another summer has passed, and with its passing the rites of autumn have begun.
The afternoon was a lovely one—the day was a perfect example of the mellowest mood of autumn.Confidence | Henry James
The plant as a whole remains green until late in the autumn.How to Know the Ferns | S. Leonard Bastin
In a general way the fronds are best collected during the summer and autumn, when they will, of course, be well developed.How to Know the Ferns | S. Leonard Bastin
Through the beautiful, windy autumn days, he labored at his difficult task, the task of telling a story.The Homesteader | Oscar Micheaux
His departure in autumn had been so gradual, that it was difficult to say when night began to overcome the day.The Giant of the North | R.M. Ballantyne
British Dictionary definitions for autumn
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
(as modifier): autumn leaves
a period of late maturity, esp one followed by a decline
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