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Longman Dictionary of Contemporary English
non-smoker
noun
PHRASES FROM OTHER ENTRIES
born-again non-smoker/vegetarian etc
EXAMPLES FROM OTHER ENTRIES
Non-smokers get cheaper health insurance.
▪ This part of the restaurant is reserved for non-smokers.
EXAMPLES FROM CORPUS
▪ A quarter of those interviewed thought the rights of smokers outweighed those of non-smokers in the staffroom.
▪ Analyses comparing rates of non-smoking among study groups at each follow up were repeated for non-smokers at baseline rather than never smokers.
▪ Cigarette smoke can smell pretty filthy, even to a smoker, while non-smokers often find it unbearable.
▪ No significant differences in the proportions of students remaining never smokers or non-smokers were found.
▪ Smokers have adapted and accepted the new rules, and non-smokers are extremely grateful.
▪ The Reading attitude survey found 15 percent of smokers - and 67 percent of non-smokers - favoured a total ban.
▪ Thirty-two percent of regular smokers reported frequent coughs compared with 22 percent of non-smokers.
▪ We also found that the presence of human papillomavirus in the cervix of non-smokers was significantly associated with a history of smoking.
Douglas Harper's Etymology Dictionary
non-smoker

also nonsmoker, "person who does not smoke," 1846, in reference to railways. Non-smoking (adj.) is attested from 1891.

Wiktionary
non-smoker

alt. somebody who does not smoke tobacco. n. somebody who does not smoke tobacco.

Usage examples of "non-smoker".

Furthermore, smokers weigh less to start with, so they end up about the same as non-smokers after a year of not smoking.

They were both travelling in the 747's upper deck, reserved for business class non-smokers, and Sisodia had moved into the em-pty seat next to Chamcha like air filling a vacuum.

Ungerlieder and Shaeffer (UCLA) and who showed absolutely no brain differences between them and non-smokers nor did it confirm any increase in IQ that the Coptics had claimed.

Rural smokers get lung cancer more than rural non-smokers, and urban smokers get cancer more than urban nonsmokers.

Smokers under 30 are not less fat than non-smokers, which suggests smoking doesn't help weight-wise.

In deference to the non-smokers, his cigarette packet was still in its Cellophane.

Some non-smokers and non drinkers can have an extraordinarily acute sense of taste and smell.