This usage is informal and serves as an attention-grabbing interjection or greeting among friends or peers. It can be used to initiate a conversation or call someone over.

This meaning emphasizes a casual greeting similar to the first, often used to express friendliness or approachability.

This phrase is used to ask someone to pause or wait for a moment, generally when something needs immediate attention or clarification.

This term serves as a casual and friendly salutation similar to "hey," often used in relaxed social settings among acquaintances or friends.