おい

おい
interjection
hey
1. hey, oi
An interjection used to get someone's attention or express surprise. Typically used by men and considered casual or rough.
おい、()てよ!
Hey, wait!
おい、大丈夫(だいじょうぶ)か?
Hey, are you okay?
おい、(なに)やってるんだ?
Hey, what are you doing?

おい is a casual, masculine interjection used to get someone's attention. It ranges from friendly to confrontational depending on tone and context.

USES:
1. Getting attention: おい、()いてるか? (Hey, are you listening?)
2. Calling out: おい、()て! (Hey, wait!)
3. Surprise/disbelief: おいおい (hey hey, come on — used when something unexpected happens)

REGISTER:

  • Informal and masculine. Primarily used by men speaking to equals or those of lower status.
  • Can sound aggressive or rude if used with strangers or superiors.
  • Women generally use ねえ or ちょっと instead.
  • Not used in formal or polite situations.

SIMILAR INTERJECTIONS:

  • ねえ: hey (gender-neutral, softer)
  • ちょっと: hey, excuse me (politer)
  • よう: hey, yo (casual, masculine)