/ Dictionary / Index B bel: Meaning and Definition of Find definitions for: bel Pronunciation: (bel), [key] — n. Physics. a unit of power ratio, equal to 10 decibels. bel Pronunciation: (bel), [key] — n. bael. Bel. Pronunciation: [key] Belgian. Belgic. Belgium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bel (Thesaurus) Békésy Bela 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