HEY meaning: 1. used as a way of attracting someone's attention, sometimes in a way that is not very polite: 2…. Learn more., Hey definition: (used as an exclamation to call attention or to express pleasure, surprise, bewilderment, etc.). See examples of HEY used in a sentence., Hey definition: Used to attract attention or to express surprise, appreciation, wonder, or pleasure., Hey (noun, informal): A shout or call intended to get someone’s attention. The word "hey" is a versatile term widely used in informal communication to greet, exclaim, or engage someone’s attention., In informal situations, you say or shout ` hey ' to attract someone's attention, or to show surprise, interest, or annoyance., hey. hi, hey, hello Synonyms: halló, góðan morgun, góðan dag, gott kvøld Antonyms: farvæl, vit síggjast hey aftur! ― hello again!.