Perhaps, I ask you a silly question, but what`s the difference between "Shop" and "Store"?

Generally, "store" would be the normal American usage, and "shop/shops" would be the normal British usage when you are referring to a grocery shop or supermarket where you buy food and other things (such as Tesco, Safeway, Wal-Mart, etc). However, in Britain most people use the plural "to the shops" or "down the shops", whereas Americans tend to use the singular "at the store".

shop -лавка; магазин; мастерская; цех; заведение; профессия; занятие;
store -запас; резерв; изобилие; большое количество; припасы; имущество; материальные средства; склад; пакгауз; заряд; амбар; магазин; оставленный про запас; универмаг; запоминающее устройство

shop [] 1) a place, esp a small building, for the retail sale of goods and services 2) an act or instance of shopping, esp household shopping the weekly shop 3) a place for the performance of a specified type of work; workshop 4) - all over the shop 5) - shut up shop 6) - talk shop shops, shopping, shopped 7) (; often foll by for) to visit a shop or shops in search of (goods) with the intention of buying them 8) () slang chiefly to inform on or betray, esp to the police •

store [] 1) () to keep, set aside, or accumulate for future use 2) () to place in a warehouse, depository, etc., for safekeeping 3) () to supply, provide, or stock 4) () to be put into storage 5) computing to enter or retain (information) in a storage device 6) a) an establishment for the retail sale of goods and services b) (in combination) storefront 7) a) a large supply or stock kept for future use b) (as modifier) store ship 8) short for department store 9) a) a storage place such as a warehouse or depository b) (in combination) storeman 10) the state of being stored (esp in the phrase in store) 11) a large amount or quantity 12) computing chiefly another name for memory 7) 13) Also called: store pig a pig that has not yet been weaned and weighs less than 40 kg 14) a) an animal bought lean to be fattened up for market b) (as modifier) store cattle 15) - in store 16) - lay store by, put store by, set store by •

shop - it probably a bit smaller, than stor! нормуль?

По жизни -"Store "-магазин, а Shop - мастерская . Так "autoshop" -автомастерская.
Хотя небольшие магазины называют "Shop" тоже.
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The difference lies in size and veriety of goods.