Haha, words! However you want to say it, when the aperture is a larger number like 9 instead of 2 you get more in focus and less light enters the lens because the hole is smaller.
Aperture is not the same thing as shutter speed. Shutter speed is the fraction, so 1/10 is much slower than 1/100. The 1/100 is only open for 1/100th of a second so less light enters and you "freeze" fast movements.