Break down and Cave in

Break down verb - To arrange or assign according to type.

Cave in is a synonym for break down in give topic. In some cases you can use "Cave in" instead a verb "Break down", when it comes to topics like descend, sag, founder, die or surrender.

Cave in verb - To fall down or in as a result of physical pressure.

Break down is a synonym for cave in in give topic. You can use "Break down" instead a verb "Cave in", if it concerns topics such as descend, sag, founder, die or surrender.