유행해요 · 유행했어요 · 유행할 거예요 · 유행하는 (+noun)
to be in fashion, to be popular; to go around (of an illness)
Example
올해는 큰 가방이 유행하고 있어요.
Big bags are in fashion this year.
Word parts
유 flow+행 go
Literally 'flowing and going around.'
Good to know
Also used for illnesses: 독감이 유행하고 있어요 means 'The flu is going around.'
Related words