an

an

"An" means "year" in English.

Here, 'ans' is used to express age, which is a standard usage in French to indicate how many years old someone is.

J'ai 25 ans.

I am 25 years old.

In this case, 'an' refers to a unit of time, specifically a year, used to indicate the duration of stay.

Nous avons passé un an en France.

We spent a year in France.

Here, 'an' denotes the frequency within a calendar year, indicating that the event happens two times annually.

L'événement est célébré deux fois par an.

The event is celebrated twice a year.