IPA: /ˈbɑːrˌtɛndər/
KK: /ˈbɑːrˌtɛndər/
A person who prepares and serves drinks, especially alcoholic beverages, at a bar or pub.
The bartender made a delicious cocktail for the customers.
Bartender → It is formed from "bar" (from Old French *barre*, meaning a barrier or counter) and "tender" (from Old English *tendian*, meaning to tend or take care of). A bartender is someone who tends to or serves drinks at a bar.
Think of a 'bar' as a counter where drinks are served, and 'tender' means to take care of — a bartender is someone who takes care of serving drinks at the bar.