What you think is your vagina is probably actually your vulva.
The vulva refers to the outside, visible parts of your genitalia. It encompasses basically everything you can see — the labia, the clitoris, the urethra, the vaginal opening, and so on — and it’s usually what most people mean when they say “vagina.”
The vagina, on the other hand, is the muscular passageway that connects the vulva to the cervix.