Breadcrumb Home > Thesaurus > O Synonyms of orthopnea Find synonyms for: Noun 1. orthopnea, dyspnea, dyspnoea usage: form of dyspnea in which the person can breathe comfortably only when standing or sitting erect; associated with asthma and emphysema and angina pectoris WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of orthopnea (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: truculent Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language