break down

verb

1.
make ineffective
crush
Derived from:
breakdown
2.
make a mathematical, chemical, or grammatical analysis of; break down into components or essential features
forloosen unthread analyse analyze dissect take apart
See also:
break
Derived from:
breakdown
3.
lose control of one's emotions
lose it snap
Derived from:
breakdown
4.
5.
6.
cause to fall or collapse
pancake
7.
separate (substances) into constituent elements or parts
break up decompose
Derived from:
breakdown
8.
collapse due to fatigue, an illness, or a sudden attack
collapse
Derived from:
breakdown