Breadcrumb Home > Dictionary > Index A aggro: Meaning and Definition of Find definitions for: ag•gro Pronunciation: (ag'rō), [key] — n. Brit. and Australian Informal. aggressiveness, esp. that of an urban youth gang or gang member. trouble; irritation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aggro (Thesaurus) aggrieved Agh. 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: pernicious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language