IPA: /səˈplaɪər/
KK: /səˈplaɪər/
A person or company that provides goods or services to others.
The supplier delivered the materials on time for the construction project.
Supplier → It is formed from "supply" (from Old French *supplyer*, meaning to provide or furnish) and "-er" (meaning a person who). A supplier is a person or entity that provides or furnishes goods or services.
Think of someone who 'provides' ('supply') something — the '-er' just means a person. A supplier is someone who provides goods or services.