Word Study
whew
CIDE DICTIONARY
whew, n. & interj.
A sound like a half-formed whistle, expressing astonishment, scorn, or dislike. [1913 Webster]
whew, v. i.
To whistle with a shrill pipe, like a plover. [1913 Webster]
OXFORD DICTIONARY
whew, int. expressing surprise, consternation, or relief.
Etymology
imit.: cf. PHEW
For further exploring for "whew" in Webster Dictionary Online
