What does "bartender" mean?

One who tends a bar or pub; a person preparing and serving drinks at a bar.

What is a synonym for "bartender"?

Common synonyms include: barkeep, bar attendant, bar professional, bar staff, barkeep, barkeeper.

Pronounced //ˈbɑːˌtɛndə(ɹ)//.

/ˈbɑːˌtɛndə(ɹ)/ noun

noun ·Uncommon ·Advanced level

Noun

1
One who tends a bar or pub; a person preparing and serving drinks at a bar.
"He observed as the sad bartender ritually played canasta with two bored and customerless dancers..."
2
an employee who mixes and serves alcoholic drinks at a bar wordnet

"When the bartender totals the bill for a customer who is drunk and angry, he must be very careful to mind his P's and Q's."

From bar + tender.