To increase, to expand, to enlarge

Open Forum in English
1

I just wonder how to use the following verbs in English:
to enlarge or to expand or to increase?

Par example: how do I say: " I want to expand/ increase/ enlarge my vobaculary?

2

I want to expand my vocabulary.
I want to increase my vocabulary.
I want to enlarge my vocabulary.

All of these are correct and mean the same thing.

3

Thank you very much for your reaction.

4