The noun form of the adjective 'expensive' is expensiveness.The word 'expensive' is the adjective form of the noun expense.
cheap, affordable, inexpensive
Cheap or inexpensive.
costly
Expensive means worth a lot or to put it in a simple version the opposite of cheap.
Some people use the word dear.
One of the meanings of "dear" is expensive, costly.
Some people use the word dear.
Mahangai if it is a Hindi word means in English - Expensive
Some people use the word dear.
It means that you are a girl that wears expensive clothes.
Costly would be one option.
Since "expensive" means that the cost is a lot, you could say," The jewelry was too expensive." The watch is very expensive. The cost of the car was too expensive.
you should know
inexpensive is a prefix for expensive
Cher's name and the word Cher of the french language are not related but the word Cher in french means "expensive".
da-ra-GOY (means dear, darling when talking to a person. lit. means expensive) spelled: дорогой