Is swim a swim vowel sound?

Short, like him.

it meas the morw you swim the longer my balls get and the deeper they go in yo mouth sike naw it means swim a long time bon't don't swim far cus momma will beat you

It is a combination of the chlorine often used to sanitize the water and the sunlight.

If you are on a swim team you could wear a skirted suit as a drag suit, that way you shave even more time at meets... If you just mean in a local pool or in your back yard, of course. The only thing...

Though its primary purpose is to stop water from going into a swimmer's ears, (and keeps hair fairly dry), it can help a swimmer to move faster. The cap has a tiny bit less friction with the water...