There are several ways to knit, there is hand knitting,which in itself has got at least three ways of doing it,
loom knitting
and machine knitting. All these are valid ways to get the product that you want.
Words that should be in your knitting vocabulary
Yarn bombing - when cover an object in the street, so no-one knows it's you.
Swatch - To check the size your knitting will come out as.
Blocking - to pin your garment into the shape it's supposed to go with either ironing or water.
And there are some people who are totally dedicated to their craft.