It's easy to get confused because both words sound the same, but "part" can refer to a section of a play (like Act 1, Scene 2) or to a piece of something.
For example:
* "I read the part of the play where the hero dies." (This refers to a section of the play.)
* "I only had a small part in the school play." (This refers to a role in the play.)
Let me know if you have any other word puzzles!