Breadcrumb Home > Thesaurus > L Synonyms of lifeblood Find synonyms for: Noun 1. lifeblood, blood usage: the blood considered as the seat of vitality 2. lifeblood, force usage: an essential or life-giving force; "water is the lifeblood of India" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of lifeblood (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: nonpareil Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language