الخزنة في الجناح.

In Arabic, the present-tense verb to be is usually not stated.

So الخزنة في الجناح literally looks like the safe in the wing, but it means The safe is in the wing.

This is a very common Arabic sentence type called a nominal sentence.

• الخزنة = the safe
• في الجناح = in the wing

The idea of is is understood automatically.

في means in.

It is a very common preposition in Arabic. In this sentence:

• في الجناح = in the wing

A useful grammar point: after في, the following noun is in the genitive case.

Because both nouns are definite:

• الخزنة = the safe
• الجناح = the wing

Arabic uses الـ to mean the.
So this sentence is specifically talking about the safe and the wing, not just a safe in a wing.

If you wanted an indefinite version, it would be something like:

• خزنة في جناح = a safe in a wing

This is a nominal sentence.

A simple way to understand it is:

• الخزنة = the topic / subject
• في الجناح = the information being given about it

In traditional Arabic grammar:

• الخزنة is the مبتدأ
• في الجناح is the خبر

So the sentence is structured as:

• The safe
  • is in the wing

Because it comes after the preposition في.

In Arabic, prepositions cause the following noun to be genitive. So in fully marked Classical or formal MSA pronunciation, you would read:

• الخزنةُ في الجناحِ

with:

• الخزنةُ = nominative
• الجناحِ = genitive after في

In normal speech or in unvocalized text, these case endings are often not pronounced.

A simple pronunciation is:

• al-khazna fī al-janāḥ

If you read it with full case endings in careful MSA, it would be closer to:

• al-khaznatu fī al-janāḥi

A few pronunciation notes:

• خ is a throaty sound, like the ch in German Bach or Scottish loch
• ج in MSA is usually like English j in job
• ح is a strong breathy h, deeper than English h

The final ة is taa marbuuTa.

In pause, it is usually pronounced like -a, so:

• الخزنة → al-khazna

But if you pronounce full grammatical endings, it is pronounced with a t sound before the ending:

• الخزنةُ → al-khaznatu

So both of these ideas are useful:

• pause pronunciation: -a
• full grammatical pronunciation: -t- before the case ending

Yes, it is grammatically feminine, and the ة is the clue.

That matters when adjectives or verbs agree with it. For example:

• الخزنة كبيرة = The safe is big

Here كبيرة is feminine to match الخزنة.

In your sentence, though, there is no adjective or past-tense verb, so you do not see any visible agreement.

Not always.

الجناح can mean:

• wing of a building
• section
• sometimes suite, especially in a hotel or large building context

So the exact translation depends on context. In many learning sentences, الجناح is often understood as wing.

Yes, Arabic can sometimes change word order for emphasis, but الخزنة في الجناح is the straightforward neutral order.

This version starts with the thing being talked about:

• الخزنة = the safe

Then it tells you where it is:

• في الجناح = in the wing

You may sometimes see prepositional phrases placed first for emphasis, but for a basic learner sentence, the given order is the most natural one to learn first.

Yes.

Both خ and ج are moon letters, so the ل in الـ is pronounced clearly:

• الخزنة = al-khazna
• الجناح = al-janāḥ

This is different from words that begin with a sun letter, where the l sound assimilates. That does not happen here.