Uh Definition

ŭ
interjection
Webster's New World
Used to express hesitation or uncertainty.
American Heritage
Used when hesitating in speaking, as while searching for a word or collecting one's thoughts: a prolonged sound.
Webster's New World

(US) Space filler or pause during conversation.

Uh, let me see...
Wiktionary
noun
An occurrence of the interjection "uh".
Wiktionary

Other Word Forms of Uh

Noun

Singular:
uh
Plural:
uhs