1. break down - Noun
2. break down - Verb
3. break down - Phrase
collapse due to fatigue, an illness, or a sudden attack
separate (substances) into constituent elements or parts
cause to fall or collapse
make a mathematical, chemical, or grammatical analysis of; break down into components or essential features
stop operating or functioning
make ineffective
lose control of one's emotions
fall apart
Source: WordNetbreak-down
analyze a specimen Source: Internet
analyze a sentence Source: Internet
analyze a chemical compound Source: Internet
The engine finally went Source: Internet
The car died on the road Source: Internet
The bus we travelled in broke down on the way to town Source: Internet