keen on

US /kiːn ɑːn/

UK /kiːn ɑːn/

1.

very interested in or enthusiastic about something

:

•

She's very keen on playing tennis.

•

He's not very keen on going to parties.

:

enthusiastic about eager for fond of interested in passionate about

2.

to be attracted to someone

:

•

I think he's keen on her.

•

Are you keen on anyone at work?

:

attracted to fond of have a crush on smitten with

:

keen (as) keen as mustard