IPA: /ˈhɛəˌdrɛsə/
KK: /ˈhɛrˌdrɛsər/
A person who cuts, styles, or arranges hair for others.
I have an appointment with my hairdresser to get a new haircut.
Hairdresser → It is formed from "hair" (from Old English *haer*, meaning the fine strands growing from the skin) and "dresser" (from Old French *dresseur*, meaning one who arranges or sets). The word "hairdresser" refers to a person who arranges or styles hair.
Think of someone who 'arranges' ('dresser') 'hair' — that's why a hairdresser is someone who styles hair.