Whew (hw&umac;), n. & interj.
A sound like a half-formed whistle, expressing astonishment, scorn, or dislike.
Whew duck, the European widgeon. [Prov. Eng.]
© Webster 1913.
Whew, v. i.
To whistle with a shrill pipe, like a plover.
[Prov. Eng. & Scot.]
© Webster 1913.