CIDE DICTIONARY
, a. Array
Autumnal equinox, the time when the sun crosses the equator, as it proceeds southward, or when it passes the autumnal point. -- Autumnal point, the point of the equator intersected by the ecliptic, as the sun proceeds southward; the first point of Libra. -- Autumnal signs, the signs Libra, Scorpio, and Sagittarius, through which the sun passes between the autumnal equinox and winter solstice.
ROGET THESAURUS
Evening
N
evening, eve, decline of day, fall of day, close of day, candlelight, candlelighting, eventide, nightfall, curfew, dusk, twilight, eleventh hour, sunset, sundown, going down of the sun, cock-shut, dewy eve, gloaming, bedtime, afternoon, postmeridian, p, m, autumn, fall, fall of the leaf, autumnal equinox, Indian summer, St. Luke's summer, St. Martin's summer, midnight, dead of night, witching hour, witching hour of night, witching time of night, winter, killing time, vespertine, autumnal, nocturnal, midnight, the outpost of advancing day, sable-vested Night, this gorgeous arch with golden worlds inlay'd.