Breadcrumb Home > Thesaurus > O Synonyms of overgrowth Find synonyms for: Noun 1. giantism, gigantism, overgrowth, hypertrophy usage: excessive size; usually caused by excessive secretion of growth hormone from the pituitary gland 2. overgrowth, profusion, profuseness, richness, cornucopia usage: a profusion of growth on or over something else WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of overgrowth (Dictionary) 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: shibboleth Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language