breakdown

noun
UK /ˈbreɪkdaʊn/
US /ˈbreɪkdaʊn/

A breakdown is when something stops working or falls apart.

The old car had a breakdown on the way to school.


OTHER MEANINGS

2. A list that explains the parts of something.

The teacher gave us a breakdown of the project steps.

3. A time when someone feels very sad and cannot cope.

He had a breakdown after working too hard for months.

4. The act of dividing something into smaller groups.

The breakdown of the teams took only a minute.