말을 하기에 앞서 주저함이나 망설임을 나타내거나, 다음 말을 생각하는 동안 잠시 멈춤을 채우기 위해 사용하는 소리.
Used to express hesitation, uncertainty, or to fill a pause while thinking of what to say next.
예문:
"Um, I think I left my wallet in the car, but let me check first."
"So, um, about that project deadline, can we push it back a day?"
"Um... what was the name of that restaurant we went to last month?"