hair A1

/ˈheːɹ/ The mass of fine threads that grow on a person's head.

haircutter C2+

/ˈhɛrˌkʌtɚ/ a person who cuts hair as a trade

haircutting C2+

/ˈhɛrˌkʌtɪŋ/ the activity of cutting hair

hairless C2+

/ˈhɛrləs/ having no hair