interj.
Used to express wonder, amazement, or great pleasure.
n.
An outstanding success.
tr.v., wowed, wow·ing, wows.
To have a strong, usually pleasurable effect on: a performance that wowed the audience.
wow2 (wou)
n.
Slow variation in the pitch of a sound reproduction resulting from variations in the speed of the recording or reproducing equipment.
[Imitative.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.