um

exclamation7

1. •
   a sound made by someone who is not sure what to say next

   • Um, I don’t know.
   • Let’s see... um... how about this?
2. •
   An expression to forcefully call attention to something wrong.

   • Um, excuse me!
3. •
   An expression of shocked disapproval used by a child who witnesses forbidden behavior.

   • While I was in her room, Sam walked by and said, “Um, I'm telling!” “You're telling what?” I asked. “You're reading Tori's journal,” she said. — 2011
4. •
   An expression used to show thought, reflection, or confusion.

   • Mmm, I see what you mean.
5. •
   a sound made by someone who is enjoying something, especially food

   • Mmm, this is a tasty pie!
6. •
   Yes.

   • Danny: Have you got any food? I: Mmm! As a matter of fact, got a saveloy. — 1987
7. •
   Used to represent an utterance that is muffled or spoken with a full mouth (also spelled "mmph").

noun1

1. •
   An occurrence of the interjection "um".

particle1

1. •
   (offensive, old-fashioned) An undifferentiated determiner or article; a miscellaneous linking word, or filler with nonspecific meaning; representation of broken English stereotypically or comically attributed to Native Americans.

   • Me be Injun. Him um Growling Bear. Him um heap big chief.

verb1

1. •
   To make the um sound to express uncertainty or hesitancy.

   • Meanwhile, in the popular mind umming was simply a bad habit, akin to spitting or picking one’s nose. — 2007

noun1

1. •
   Initialism of unmounted mint.