Regular means regular. Just normal plants where theres 50/50 chance of getting males or females. There is feminised plants where most breeders offer a 99 percent chance of getting all female plants. There are autoflowering plants which flower on their own rather than having to trigger flowering by changing light schedule from 24/0 0r 18/6 to 12/12.
Theres loads of different seed types. Once you start a grow you'll be hooked!!!