آن

آن

"آن" means "that" in English.

In this sentence, 'آن' is used as a demonstrative pronoun meaning 'that', referring to a specific book.

آن کتاب قدیمی است.

That book is old.

Here, 'آن' functions as a demonstrative adjective referring to a specific 'topic' or 'subject' mentioned previously.

مقاله او را درباره آن موضوع خواندم.

I read her article about that subject.

In this context, 'آن' is used as a pronoun referring to some previously mentioned aid or action.

آن کمک زیادی کرد.

That helped a lot.