Η φίλη μου νιώθει κλεισμένη στο μικρό της διαμέρισμα και θέλει βόλτα στην πλατεία.

In Greek, the definite article is normally used together with possessive pronouns:

• η φίλη μου = my (female) friend
• το σπίτι μου = my house
• ο αδελφός σου = your brother

The pattern is usually: article + noun + unstressed possessive pronoun.

Leaving out the article (φίλη μου) is possible, but it sounds more emotional, poetic, or vocative, e.g.:

• Φίλη μου, σε καταλαβαίνω. = My friend, I understand you.

In a neutral sentence like yours, Η φίλη μου is the normal choice.

Both mean friend, but they mark gender:

• φίλος = male friend (or grammatically masculine, sometimes generic)
• φίλη = female friend (grammatically feminine)

So η φίλη μου clearly refers to a female friend.
If you were talking about a male friend, you’d say:

• Ο φίλος μου νιώθει κλεισμένος…
  (note ο and κλεισμένος, masculine forms)

νιώθει is the 3rd person singular of νιώθω, “to feel”.

• (αυτή) νιώθει = she feels

In this context: νιώθει κλεισμένη ≈ “she feels shut in / cooped up”.

νιώθω and αισθάνομαι are very close in meaning and often interchangeable:

• Νιώθει κλεισμένη.
• Αισθάνεται κλεισμένη.

Both are fine here. Νιώθω is a bit more common and colloquial; αισθάνομαι can sound slightly more formal or “careful” speech, but the difference is small.

κλεισμένη is a participle used as an adjective. More precisely:

• It comes from the verb κλείνω (to close).
• It is the feminine, singular, nominative form of the passive perfect participle: “closed / shut in”.

It agrees with the subject η φίλη (μου):

• Η φίλη μου νιώθει κλεισμένη.
  (feminine singular subject → κλεισμένη)

Compare:

• Ο φίλος μου νιώθει κλεισμένος. (masculine sg)
• Τα παιδιά νιώθουν κλεισμένα. (neuter plural)

Here it has the idiomatic meaning “cooped up / stuck inside”, not just literally “closed”.

στο is a contraction of:

• σε (preposition “in / at / to”)
• το (neuter singular definite article “the”)

So:

• σε + το = στο

Because διαμέρισμα is neuter singular, you use το, giving στο διαμέρισμα = “in the apartment”.

The full phrase:

• στο μικρό της διαμέρισμα
  = in her small apartment

Here:

• μικρό agrees with διαμέρισμα (both neuter singular).
• της shows that the apartment belongs to her.

With an unstressed possessive pronoun like της, the very common pattern is:

• article + adjective + possessive + noun

Examples:

• το μικρό της διαμέρισμα = her small apartment
• ο καλός μου φίλος = my good friend
• η παλιά μας γειτονιά = our old neighborhood

So το μικρό της διαμέρισμα is the most natural word order.

You can also express possession with δικός/δική/δικό:

• το δικό της μικρό διαμέρισμα = her own small apartment (more emphatic)

But της μικρό διαμέρισμα without article/adjective in front is not natural here. The clitic της normally doesn’t go in front of everything; it sits after the article/adjective block.

In Greek, every noun has a grammatical gender (masculine, feminine, or neuter) that you must learn with the word.

• το διαμέρισμα (apartment) is neuter.
• The adjective must agree with the noun in gender, number, and case.

So:

• μικρό διαμέρισμα (neuter singular)
• not μικρός διαμέρισμα (masculine) or μικρή διαμέρισμα (feminine)

Other examples:

• ο μικρός σκύλος (masc)
• η μικρή γάτα (fem)
• το μικρό διαμέρισμα (neut)

της here is an unstressed 3rd person possessive pronoun: “her”.

Key points:

• It refers to the owner (she), not to the noun’s gender.
• Its form depends on who the possessor is (he, she, they), not on what is possessed.

So:

• το σπίτι της = her house
• η γάτα της = her cat
• το διαμέρισμά της = her apartment

In all three, the noun’s gender changes, but της stays the same because she is the owner.

If the owner were male:

• το διαμέρισμά του = his apartment

If the owner were “them” (plural):

• το διαμέρισμά τους = their apartment

Both are possible, but θέλει βόλτα is very natural and idiomatic.

• θέλει βόλτα literally: “she wants (a) walk”
  → feels like “she wants to go for a walk / needs a walk”

This is similar to set phrases in English like “I need coffee” (not always “a coffee”).

You could also say:

• Θέλει μια βόλτα στην πλατεία. = She wants a walk in the square.

That’s also correct, just a bit more explicit. Omitting μια here keeps it snappy and slightly more colloquial.

στην is σε + την:

• σε = in / at / on / to (very broad preposition)
• την πλατεία = the square

στην πλατεία can mean in, at, or to the square, depending on context.

In the sentence:

• …και θέλει βόλτα στην πλατεία.

it’s understood as “(go) for a walk in/at the square” or “(go) for a walk to the square”. Greek doesn’t always distinguish as sharply as English here; the important idea is movement associated with that place.

Examples:

• Πηγαίνω στην πλατεία. = I’m going to the square.
• Κάθομαι στην πλατεία. = I’m sitting in/at the square.

Yes, that’s completely normal. The sentence contains two different possessors:

• Η φίλη μου = my friend (1st person singular possessor)
• στο μικρό της διαμέρισμα = her small apartment (3rd person singular female possessor)

So:

• μου = my
• σου = your (sg)
• του = his
• της = her
• μας = our
• σας = your (pl/formal)
• τους = their

Using μου and της together just shows that you are talking about your friend, and the apartment belongs to her.