Meanings

1. particlehey; youat sentence-end; indicates certainty, emphasis, contempt, request, warning, etc.
2. particleheyafter a noun; used when calling out to someone
3. particlehey; hold onin mid-sentence; used to catch one's breath or get someone's attention
4. interjectionyo; hey

Examples

• １１時になっているよ。

  It is already eleven.

• 田中さんのことを頼むよ。

  Take care of Mr. Tanaka for me!

• 彼を誘わなくちゃだめよ。

  You should definitely ask him out.

Sentences from Tatoeba (CC BY 2.0 FR).