/ Dictionary / Index A atwitter: Meaning and Definition of Find definitions for: a•twit•ter Pronunciation: (u-twit'ur), [key] — adj. excited; nervous; aflutter; twittering: They were atwitter at the prospect of meeting a Hollywood star. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. atween Atwood Related Content Daily Word Quiz: alacrity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language