big
The Italian word 'grande' is an adjective used to describe a large size, extent or quantity, similar to 'big' in English. It can be used in the same ways to refer to physical size of objects, broadness of concepts or even intensity of feelings. For example, you can use 'grande' in sentences like 'Un grande elefante' (A big elephant) or 'Un grande amore' (A great love).
Rome is a very big city.
In this sentence, we learn that 'grande' means big and is describing the size of the city of Rome. With 'molto' before it, the size of the city is further emphasized to be 'very big'.
This problem is bigger than expected.
This sentence is a common use of 'grande' when describing a problem. The word 'più' means 'more' in English, and when it's before 'grande' it indicates a comparative degree, making 'grande' meaning 'bigger' instead of just 'big'.
Big Brother is watching you.
This example is a famous quote from George Orwell's novel '1984'. 'Grande' in this context is used as an adjective that precedes the noun, highlighting a characteristic of the Brother as being 'Big'.