fall equinox

English Thesaurus

1. September 22 (noun.time)

hypernym	:	equinox,
definition	:	either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length (noun.time)

part meronym	:	sep, sept, september,
definition	:	the month following August and preceding October (noun.time)

part meronym	:	autumn, fall,
definition	:	the season when the leaves fall from the trees (noun.time)

antonym	:	march equinox, spring equinox, vernal equinox,
definition	:	March 21 (noun.time)

antonym	:	march equinox, spring equinox, vernal equinox,
definition	:	March 21 (noun.time)