/ Dictionary / Index O obento: Meaning and Definition of Find definitions for: o•ben•to Pronunciation: (ō-ben'tō Japn. ô-ben'tô), [key] — pl. -tos -to. bento. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. obelus Oberammergau Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language