It's a bit of a trick question! Homonyms are words that sound the same but have different meanings and spellings.
However, "left" can be used as both:
* An adjective: meaning "situated on the side of the body that is opposite to the right" (e.g., "The left hand").
* A verb: meaning "to depart or go away" (e.g., "He left the room").
So, while it's the same word, it has different meanings depending on how it's used.