IPA: /ˈbɑːrtərər/
KK: /ˈbɑːrtərər/
A person who exchanges goods or services directly for other goods or services without using money.
The barterer traded his handmade furniture for fresh vegetables at the market.
Barterer → It is formed from "barter" (from Old French *barater*, meaning to trade or exchange) and "-er" (meaning a person who). A barterer is a person who engages in the act of trading goods or services without using money.
Think of someone who 'trades' ('barater') goods or services directly — that's what a barterer does.