/ Dictionary / Index R ROA: Meaning and Definition of Find definitions for: ROA Pronunciation: [key] return on assets. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. RO. roach Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language