: a person who does not smoke tobacco : a person who is not a smoker
Radon poisoning is the leading cause of lung cancer in nonsmokers, according to the Environmental Protection Agency.—Jonathan Scholles
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Healthy nonsmokers, diagnosed late, often by accident.—Armstrong Williams, Baltimore Sun, 1 May 2026 Studies show that nonsmokers, former smokers and current smokers underestimate smoking risks.—Marie Helweg-Larsen, The Conversation, 10 Apr. 2026 National health survey data from 2013 to 2020 revealed the people who would no longer qualify for medication were typically female nonsmokers in their mid‑60s with otherwise low cardiovascular risk scores.—Theresa Gaffney, STAT, 17 Mar. 2026 WalletHub found the cost of secondhand smoke exposure in New York, then calculated the expenses in other states according to their numbers of smokers and nonsmokers.—Alexis Simmerman, Austin American Statesman, 14 Feb. 2026 See All Example Sentences for nonsmoker