my

(interjection, determiner)

determiner

1. Belonging to me.

- I can't find my book.

2. Associated with me.

- My seat at the restaurant was uncomfortable.

- Don't you know my name?

- I recognised him because he had attended my school.

3. Related to me.

- My parents won't let me go out tonight.

4. In my possession.

- I have to take my books back to the library soon.

interjection

1. (dated) Used to express surprise, shock or amazement.

- My, what big teeth you have!