| break down | collapse due to fatigue, an illness, or a sudden attack |
|---|---|
| break down | separate into constituent elements or parts, as of chemical substances |
| break down | stop operating or functioning |
| break down | make a mathematical, chemical, or grammatical analysis of |
| break down | make ineffective |
| break down | cause to fall or collapse |
| break down | lose control of one's emotions |
| break down | fall apart |