/ Dictionary / Index A acto: Meaning and Definition of Find definitions for: ac•to Pronunciation: (ak'tō Sp. äk'tô), [key] — pl. -tos a short, realistic play, usually in Spanish, that dramatizes the social and economic problems of Chicanos. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. activize act of faith Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language