autumn Meaning, Definition & Usage

  1. noun the season when the leaves fall from the trees
    fall.
    • in the fall of 1973

WordNet

Au"tumn noun
Etymology
L. auctumnus, autumnus, perh. fr. a root av to satisfy one's self: cf. F. automne. See Avarice.
Definitions
  1. The third season of the year, or the season between summer and winter, often called "the fall." Astronomically, it begins in the northern temperate zone at the autumnal equinox, about September 23, and ends at the winter solstice, about December 23; but in popular language, autumn, in America, comprises September, October, and November. ✍ In England, according to Johnson, autumn popularly comprises August, September, and October. In the southern hemisphere, the autumn corresponds to our spring.
  2. The harvest or fruits of autumn. Milton.
  3. The time of maturity or decline; latter portion; third stage.
    Dr. Preston was now entering into the autumn of the duke's favor. Fuller.
    Life's autumn past, I stand on winter's verge. Wordsworth.

Webster 1913