/ Dictionary / Index B Billerica: Meaning and Definition of Find definitions for: Bille•ric•a Pronunciation: (bil-rik'u, bel"u-, bil'ri-ku), [key] — n. a city in NE Massachusetts. 36,727. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. billed billet Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language