Dictionary
au•tumn
Pronunciation: (ô'tum), [key]—
n.
1. 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.
2. a time of full maturity, esp. the late stages of full maturity or, sometimes, the early stages of decline:
to be in the autumn of one's life. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.