What is the difference between a playsuit, a jumpsuit and an all-in-one?!?

help! im seriously confuddled! i thought playsuits were shorts and a top combined an a jumpsuit was with long bottoms and i recently bought what i thought was a playsuit from Miss Selfridge but was described as a 'short all-in-one'! i was confused after seeing this in topshop which is described as a... show more help! im seriously confuddled! i thought playsuits were shorts and a top combined an a jumpsuit was with long bottoms and i recently bought what i thought was a playsuit from Miss Selfridge but was described as a 'short all-in-one'! i was confused after seeing this in topshop which is described as a 'playsuit' but i thought it was a jumpsuit:

http://www.topshop.com/webapp/wcs/stores/servlet/ProductDisplay?beginIndex=0&viewAllFlag=&catalogId=19551&storeId=12556&categoryId=146486&parent_category_rn=118926&productId=1646026&langId=-1

any help much appreciated!
thanks! <3 x