verb (used without object) 1. to express mirth, pleasure, derision, or nervousness with an audible, vocal expulsion of air from the lungs that can range from a loud burst of sound to a series of quiet chuckles and is usually accompanied by characteristic facial and bodily movements.
Quick Answer. In the Northern Hemisphere, autumn is between the autumnal equinox that begins on Sept. 22 or 23 and the winter solstice, which is Dec. 21 or 22. In the Southern Hemisphere, autumn is between March 20 or 21 and June 21 or 22. Continue Reading.
Alerts In Effect. Autumn Begins Early. Autumn begins on September 23, but it arrives earlier than that at Rocky Mountain National Park. Autumn is a time of changes, especially weather-related changes, across all the altitudes in the park.