8e948578_l_Verbs___Common_Phrasal_Verbs__Phrasal_Verb
[Meaning] To go out of order, cease to function To lose control of one’s emotions [Example] The washing machine broke down so we had to call in the repair technician. John broke down when he heard the news. [Phrasal Verb] 
break down
An Extensive List of Phrasal Verbs | Common Phrasal Verbs
Phrasal Verb