Welcome Tara. I'll try to help with the definitions:
Lacto-ovo vegetarian -consumes no meat products, but eats eggs and dairy
Lacto vegetarian - consumes no meat products or eggs, but eats dairy
Ovo vegetarian - consumes no meat products or dairy but eats eggs
Vegan - consumes NO animal products, dairy, eggs, or honey. Doesn't wear animal products (leather, silk, wool, etc) *Uses cruelty free and animal product free products (shampoos, nail remover, cleaning products, makeup, etc.)*
Im sure more can add to that. That's just the simple definition of vegan.
*some vegans choose to use the stuff they bought before going vegan, and start buying cruelty free products after its gone, or some get rid of it right away. Its a personal choice*