IPA: /ˈfɜrnɪʃər/
KK: /ˈfɜrnɪʃər/
A person or company that provides or supplies furniture or equipment.
The furnisher delivered the new office furniture on time.
Furnisher → It is formed from "furnish" (from Old French *furnir*, meaning to supply or provide) and "-er" (meaning a person who). A furnisher is a person who supplies or provides furniture or other items.
Think of someone who 'supplies' ('furnish') things — the '-er' indicates that this person is the one providing.