Breadcrumb Home > Thesaurus > W Synonyms of weir Find synonyms for: Noun 1. weir, dam, dike, dyke usage: a low dam built across a stream to raise its level or divert its flow 2. weir, fence, fencing usage: a fence or wattle built across a stream to catch or retain fish WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of weir (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: soupon Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language