Breadcrumb Home > Thesaurus > P Synonyms of poseidon Find synonyms for: Noun 1. Poseidon usage: (Greek mythology) the god of the sea and earthquakes in ancient mythology; brother of Zeus and Hades and Hera; identified with Roman Neptune WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of poseidon (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: turgid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language