Breadcrumb Home > Thesaurus > P Synonyms of placebo Find synonyms for: Noun 1. placebo, medicine, medication, medicament, medicinal drug usage: an innocuous or inert medication; given as a pacifier or to the control group in experiments on the efficacy of a drug 2. placebo, vesper usage: (Roman Catholic Church) vespers of the office for the dead WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of placebo (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: variegate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language