Breadcrumb Home > Thesaurus > S Synonyms of spleen Find synonyms for: Noun 1. spleen, lien, lymphatic tissue, lymphoid tissue usage: a large dark-red oval organ on the left side of the body between the stomach and the diaphragm; produces cells involved in immune responses 2. irascibility, short temper, spleen, quick temper, bad temper, ill temper usage: a feeling of resentful anger WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of spleen (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: recherch Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language