seven
In Italian, the word 'sette' is used to represent the number seven. It is used in the same way as in English, to count or to express quantities.
Seven days ago, I went to Rome.
This example is was written in the past tense. It conveys a past action that more specifically occurred a week ago.
There are seven colors in the rainbow.
This sentence describes a general fact about the number of colors in a rainbow.
I've read seven books this month.
This sentence tells about a past action conducted over a period of time, specifically on the number of books read in a month.