Meaning of the word umm in English

What does umm mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

umm

US /ʌm/
UK /ʌm/

Interjection

used to express hesitation, uncertainty, or to fill a pause in conversation

Example:
Umm, I'm not sure if I can make it to the meeting.
So, umm, what do you think about the new proposal?