Breadcrumb Home > Dictionary > Index H halloo: Meaning and Definition of Find definitions for: hal•loo Pronunciation: (hu-l'), [key] — pl. v.i., v.t., -loos, -looed, -loo•ing. hallo. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: halloo (Thesaurus) Hall of Famer hallow TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: variegate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language