IPA: //kwɑːˈfɜːr//
KK: /kɔɪˈfɜr/
A man who styles and cuts hair professionally.
The coiffeur gave me a stylish haircut for the wedding.
Coiffeur comes from the French word 'coiffer' (meaning to style or arrange hair) and the suffix '-eur' (indicating a person who performs an action). Therefore, a coiffeur is a person who styles or arranges hair.
Think of someone who 'styles' ('coiffer') hair — that's what a coiffeur does.