ˌnon-ˈsmoker BrE AmE noun [countable]
[ Word Family: noun : ↑ smoke , ↑ smoker ≠ ↑ non-smoker , ↑ smoking , ↑ smokiness ; adjective : ↑ smoked , smoking ≠ ↑ non-smoking , ↑ smoky , ↑ smokeless ; verb : ↑ smoke ]
someone who does not smoke:
an area reserved for non-smokers