afición in inglese:

What's your hobby?

Bodybuilding is his hobby so he has a very firm tight body with lots of muscle definition.

Sailing a boat, his chief hobby, costs him most of his salary.

Her handicraft is more than a hobby. It's more like a profession.

Smokers are as aware as anybody else of the disadvantages of their hobby, but manage to live with that knowledge for two main reasons.

It can hardly be called research... just an amateur's hobby, I'm ashamed to say.

That's an unusual hobby she's got, the transfer student. "She's cute so it's fine with me."

Is it any of your business what someone's hobby is?

When talking about his hobby, he always puts on a serious expression.

"The Commission hesitates to protect a nearly endangered species, but sees fit to regulate fishing as a hobby. "

Nie mam już czasu na moje hobby.

Umezawa has had the hobby of writing haikus since he was young.

If one does not have a hobby, his life may be desolate.

I don't know if you'd call it a hobby, but to stretch it a little, you could say music appreciation is my hobby.