THESAURUS
sunup
aurora, break of day, brightening, chanticleer, cockcrow, cocklight, crack of dawn, dawn, dawning, day-peep, daybreak, daylight, dayspring, first brightening, light, morn, morning, peep of day, prime, sunrise, vestibule of Day
ROGET THESAURUS
sunup
Morning
N
morning, morn, forenoon, a, m, prime, dawn, daybreak, dayspring, foreday,
sunup, peep of day, break of day, aurora, first blush of the morning, first flush of the morning, prime of the morning, twilight, crepuscule, sunrise, cockcrow, cockcrowing, the small hours, the wee hours of the morning, spring, vernal equinox, first point of Aries, noon, midday, noonday, noontide, meridian, prime, nooning, noontime, summer, midsummer, matin, matutinal, vernal, at sunrise, with the sun, with the lark, when the morning dawns, at shut of evening flowers, entre chien et loup, flames in the forehead of the morning sky, the breezy call of incense-breathing morn.