break down - खराब हो जाना - stop functioning (vehicle, machine)
Our car broke down at the side of the highway.
break down - हिम्मत हार जाना - get upset
The woman broke down when the police told her that her husband had died.
break something down - विभाजित करना - divide into smaller parts
Our teacher broke the final project down into three separate parts.
break in - ताला तोड़ कर घुसना - force entry to a building
The robbers broke in last night and stole our valuables.