hey
[hei]
interj. 嗨



Hey \Hey\, a. [See {High}.]
High. [Obs.] --Chaucer.


Hey \Hey\, interj. [OE. hei; cf. D. & G. hei.]
1. An exclamation of joy, surprise, or encouragement. --Shak.

2. A cry to set dogs on. --Shak.