خدمة الغرف متاحة.

• خدمة = service
• الغرف = the rooms
• متاحة = available / accessible

So the sentence literally means The service of the rooms is available, which is the natural Arabic way to say Room service is available.

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

So instead of saying something like Room service is available, Arabic simply says:

• خدمة الغرف متاحة

This is called a nominal sentence.

If you wanted a past tense, then Arabic would normally use a verb, for example:

• كانت خدمة الغرف متاحة = Room service was available

Because خدمة ends in ة (taa marbuuTa).

• When a word like this stands alone, it is often pronounced like -a or -ah: khidma
• But when it is followed by another noun in an iDaafa construction, the ة is pronounced -t

So here:

• خدمة الغرف = khidmat al-ghuraf

That t sound is completely normal and important in this structure.

Yes. خدمة الغرف is an iDaafa (possessive/genitive construction).

It literally means:

• service of the rooms

In an iDaafa:

1. The first noun usually does not take ال
2. The second noun can be definite
3. The whole phrase can become definite because of the second noun

So:

• خدمة = service
• الغرف = the rooms
• خدمة الغرف = the room service / room service

Arabic often uses the plural here because the meaning is service for hotel rooms in general.

So:

• خدمة الغرف = room service as a hotel service

If you said:

• خدمة الغرفة

that would sound more like the service of the room or the room's service, referring more to one specific room rather than the hotel service as a whole.

Because it agrees with خدمة, which is a feminine singular noun.

Even though الغرف is plural, the main noun of the phrase is خدمة. The phrase خدمة الغرف is headed by خدمة, so the predicate agrees with that.

That is why Arabic uses:

• متاحة = feminine singular

not:

• متاح = masculine singular

Because متاحة is the predicate of the sentence, not part of the noun phrase خدمة الغرف.

In sentences like this, the predicate is often indefinite in Arabic.

So:

• خدمة الغرف = the subject
• متاحة = the predicate, available

This is a very common pattern:

• الواي فاي مجاني = The Wi‑Fi is free
• المطعم مفتوح = The restaurant is open
• خدمة الغرف متاحة = Room service is available

In fully vowelled formal Arabic, it would be:

• خِدْمَةُ الغُرَفِ مُتَاحَةٌ

Grammatically:

• خدمةُ = nominative, because it is the subject
• الغرفِ = genitive, because it is the second part of the iDaafa
• متاحةٌ = nominative, because it is the predicate

In normal speech or signs, these endings are usually not pronounced, so you will commonly just hear:

• خدمة الغرف متاحة

A simple approximate pronunciation is:

• khid-mat al-ghu-raf mu-taa-ha

A few sound notes:

• خ = like the ch in German Bach or Scottish loch
• غ = a deep gh sound, somewhat like a French or gargled r
• ح in متاحة is a stronger, breathier h than English h

A more careful transliteration is:

• khidmat al-ghuraf mutāḥa

The normal, most neutral order here is:

• خدمة الغرف متاحة
• subject + predicate

Arabic can sometimes change word order for style, emphasis, or context, but for a hotel notice or straightforward statement, خدمة الغرف متاحة is the natural choice.

Putting متاحة first would be less neutral and not the standard way you would usually see this written on a sign.

Yes. A few common alternatives are:

• خدمة الغرف متوفرة = Room service is available
• تتوفر خدمة الغرف = Room service is available / Room service is provided
• توجد خدمة غرف = There is room service

But خدمة الغرف متاحة is perfectly natural and clear, especially in hotel or service language.