(はや)

はやる
godan verb
to be popular, to be in fashion
1. to be popular, to be in fashion
To be widely adopted or enjoyed.
この(うた)流行(はや)っている。
This song is popular.
(いま)、どんなファッションが流行(はや)っていますか。
What fashion is popular now?
この(みせ)(わか)(ひと)(あいだ)流行(はや)っている。
This shop is popular among young people.
2. to spread, to be prevalent
For a disease or trend to become widespread.
インフルエンザが流行(はや)っている。
The flu is going around.
去年(きょねん)(ふゆ)風邪(かぜ)がとても流行(はや)った。
Colds were very prevalent last winter.
学校(がっこう)(あたら)しいゲームが流行(はや)っているらしい。
Apparently a new game is popular at school.

流行(はや)る is an intransitive godan verb meaning something becomes popular or widespread.

TRANSITIVITY:
自動詞(じどうし) (intransitive) - the subject spreads/becomes popular on its own.

ASPECT (ている):
流行(はや)っている means "is currently popular/going around."

READINGS:

  • 流行(はや)る (verb): to be popular, to spread
  • 流行(りゅうこう) (noun): trend, fashion, epidemic

USES:
1. Positive: trends, fashion, songs, games
2. Negative: diseases, epidemics (流行(はや)(やまい))

RELATED EXPRESSIONS:

  • 流行(はや)(もの): something trendy
  • 流行(りゅうこう)(): buzzword, trendy word
  • 大流行(だいりゅうこう): huge trend, pandemic