There are two demonstrative adjectives in Persian: “این” for nearer objects and “آن” for further objects. It does not matter whether the object is singular or plural.
Demonstrative pronouns come in place of nouns in sentences. There are four demonstrative pronouns in Persian.
These demonstrative pronouns should not be mistaken with demonstrative adjectives (این and آن) and the third person personal pronouns.
این را میدانم.
آنها را دیروز خریدم.
I know this.
I bought those yesterday.
Definitive Demonstrative Adjectives
Definitive demonstrative adjectives are used to point at objects, putting emphasis on them in order to either make them unique or emphasize on them. In pronunciation, the stress goes on their first syllable.
با همین تفنگ کشتندش.
آن روز از همین راه رفتم.
همان روز همهچیز را فهمیدم.
این همان خیابانی است که گفتم.
امین هم همین را گفت.
They killed him with this same gun.
I went from the same way that day.
On the same day, I found out everything.
This is the street that I said.
Amin said the same thing too.
Definitive Demonstrative Pronouns
These pronouns, meaning “the same one(s)”, “exactly this/that one(s)” or “just this/that one(s)” are used a lot in Persian. They are also used for humans but they are not classified as personal pronouns. In pronunciation, the stress goes on their first syllable if they are singular and on the last syllable (ها) if they are plural.