shop - store
In British English, a building or part of a building where goods are sold is usually called a shop.
Are there any shops near here?
In American English, this kind of building is usually called a store, and shop is only used to mean a very small store that has just one type of goods.
Mom has gone to the store.
I got it from a little antiques shop in Princeton.
In British English, very large shops are sometimes called stores.
They've opened a new DIY store on the outskirts of town.
In both British and American English, a large shop that has separate departments selling different types of goods is called a department store.
She works in the furnishings department of a large department store.
‘shop’ used as a verb
Shop can also be a verb. When people shop, they go to shops and buy things.
I usually shop on Saturdays.
You usually say that someone goes shopping, rather than that they ‘shop’.
They went shopping after lunch.
When someone goes to the shops to buy things that they need regularly, such as food, you say that they do the shopping or do their shopping.
Who's going to do the shopping?
She went to the next town to do her shopping.
Shopping can be used without ‘do’ or ‘go’ to refer to the activity of buying things from shops.
I don't like shopping.
Shopping can also refer to the things that someone has just bought from a shop or shops.
She put her shopping away in the kitchen.
Shopping is an uncountable noun. Don't talk about ‘a shopping’ or someone's ‘shoppings’.*