뱉다 (paettta) means “spit” | MotiTan Korean Dictionary

More examples

아이들이 놀이터에서 침을 뱉었다.a i deu ri no ri teo e seo chi meul pae teot tta

The children spat in the playground.

Something in the mouth is pushed out with force, whether it is saliva or a small unwanted object.

내뱉다naebaettta: Say words forcefully and without hesitation.
침을 뱉다chimeul paettta: Spit saliva out where other people can see it.

입에서 침이나 작은 이물질을 세게 밖으로 내뱉는 행동을 가리키는 동사.i be seo chi mi na cha geun i mul jji reul se ge pa kkeu ro nae baen neun haeng dong eul ka ri ki neun tong sa

This is a native Korean verb, but its exact historical development is uncertain.

English often uses spit out when the thing leaving the mouth is named, while this Korean verb can express the forceful action by itself.