/ Dictionary / Index A Americus: Meaning and Definition of Find definitions for: A•mer•i•cus Pronunciation: (u-mer'i-kus), [key] — n. a city in SW central Georgia. 16,120. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. americium Amerigo Vespucci Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language