한 물체가 다른 물체와 접촉하여 운동할 때 그 접촉면에서 일어나는 운동을 방해하는 저항력.
The resistance encountered when one body or surface moves over another.
예문:
"Engine oil is essential to reduce the friction between moving parts and prevent overheating."
"The friction created by rubbing your hands together generates heat."
"Rough surfaces produce more friction than smooth ones."
서로 다른 의견, 성격, 이해관계 등으로 인해 발생하는 사람이나 집단 사이의 충돌이나 불화.
Conflict or animosity caused by a clash of wills, temperaments, or opinions.
예문:
"The new policy caused significant friction between the administration and the faculty."
"A lack of communication often leads to unnecessary friction within a team."