IPA: //ˈlɔːndrimən//
KK: /ˈlɔndrimən/
A man who works in the business of washing and cleaning clothes.
The laundryman picked up the dirty clothes from the customer's house.
Laundryman → It is formed from "laundry" (from Old French *lavanderie*, meaning a place for washing) and "man" (meaning a person). The word "laundryman" refers to a person who works in a place where clothes are washed.
Think of a 'place for washing' ('laundry') and a 'person' ('man') who works there — that's what a laundryman is.