licensed (BrE)
crowded
open
lounge, public (BrE), saloon (esp. BrE)
hotel
gay, lesbian, singles
karaoke
beer (AmE), cocktail, wine
breakfast, burger, coffee, juice, salad, sandwich, snack, sushi
local
popular, trendy
favourite/favorite
dive (AmE)
It was supposed to be a restaurant but seemed more like a dive bar.

enter, frequent, go to, hang out (informal, esp. AmE), hit (informal), stop at, visit
He often drops into a bar on the way home from work.
Let's hit the bars!

manage, own, run

food, menu, snacks
stool
manager, owner
staff
counter
area

in a/the bar
There were not many people in the bar.

at a/the bar
We met at a bar called the Anvil.

breakfast

be propping up (humorous)

at the bar
They were chatting at the bar.
You can usually find him sitting at the bar.

behind the bar
The barmaid stood behind the bar.
I didn't recognize the man who was serving behind the bar.

hum, play, sing
She played a few bars on the piano.

in a/the bar
the notes in the first bar

two, four, etc. beats to the bar