flap

Definition

A loose or hinged part that covers an opening; a sudden movement of wings or arms; a state of agitation.

한국어 열린 구멍을 덮는 느슨한 또는 수동부; 날개 또는 팔의 급격한 운동; 분위기의 혼란

Example

"The bird's wings made a loud flap as it took off."