الأثاث جديد.

A common pronunciation is:

al-athāthu jadīd(un)

In normal pause at the end of a sentence, people usually say:

al-athāth jadīd

A few notes:

• ال = al-
• ث sounds like th in think
• جديد = jadīd, with a long ī sound like ee in see

So the whole sentence sounds roughly like:

al-a-THAATH ja-DEED

In fully vocalized MSA, it is:

الأثاثُ جديدٌ

But the final short vowels are often not pronounced in everyday reading aloud unless you are reading very carefully.

Because Arabic often does not use a present-tense verb meaning is/are/am in simple sentences like this.

So:

• الأثاث جديد literally looks like the furniture new
• but it means The furniture is new

This is completely normal in Arabic. In the present tense, Arabic usually just places the subject and predicate next to each other.

If you wanted the past tense, then Arabic would use a verb such as كان:

• كان الأثاث جديدًا = The furniture was new

This is a nominal sentence in Arabic, called جملة اسمية.

It has two main parts:

• الأثاث = the subject of the nominal sentence
  
  • traditionally called المبتدأ
• جديد = the predicate or what is being said about the subject
  
  • traditionally called الخبر

So the structure is:

• المبتدأ: الأثاث
• الخبر: جديد

This is one of the most basic and common sentence patterns in Arabic.

Because جديد here is the predicate, not an adjective inside the same noun phrase.

Compare these two:

• الأثاث جديد = The furniture is new
• الأثاث الجديد = the new furniture

This is a very important difference.

In الأثاث جديد:

• الأثاث is the subject
• جديد is the predicate
• so جديد does not need الـ

In الأثاث الجديد:

• الجديد is an adjective describing الأثاث
• so it must match in definiteness
• both words take الـ

So:

• الأثاث جديد = a full sentence
• الأثاث الجديد = just a noun phrase

Because it agrees with الأثاث, which is grammatically treated as masculine singular.

So Arabic uses:

• الأثاث
  • جديد

not:

• جديدة
• جدد
• جديدات

Even though furniture in English refers to many pieces, the Arabic word أثاث is treated as a single noun grammatically.

That is why the predicate/adjective appears in the masculine singular form:

• جديد

Grammatically, it is generally treated as a singular noun.

Semantically, it refers to furniture as a category or collection, much like English furniture, which is also not usually counted as a regular plural noun.

So although furniture consists of many items, Arabic says:

• الأثاث جديد not
• الأثاث جدد

You would use other words if you wanted to count individual items, such as pieces of furniture.

In fully vocalized formal Arabic, the sentence is:

الأثاثُ جديدٌ

The endings are:

• الأثاثُ = -u because it is the مبتدأ and therefore nominative
• جديدٌ = -un because it is the خبر and also nominative

So both parts are nominative in this kind of nominal sentence.

However, in normal pause, these endings are usually not pronounced, so you commonly hear:

• الأثاث جديد

They are related, but they do different jobs depending on the structure.

• جديد = new as a predicate in a sentence

  • الأثاث جديد = The furniture is new

• الجديد = the new as an adjective attached to a definite noun

  • الأثاث الجديد = the new furniture

A useful shortcut:

• if you mean X is new, use جديد
• if you mean the new X, use الجديد

Yes, but الأثاث جديد is the most straightforward and beginner-friendly order.

This order is:

• subject + predicate

Arabic can sometimes vary word order for style or emphasis, especially in more advanced usage, but for learning purposes, الأثاث جديد is the standard pattern to remember.

So if you are building basic present-tense sentences like:

• البيت كبير
• الولد طويل
• الجو جميل

then الأثاث جديد fits exactly the same pattern.

It is pronounced here.

That is because ث is a moon letter (حرف قمري), not a sun letter.

So:

• الأثاث is pronounced al-athāth
• the l sound stays

Compare that with a sun-letter word, where the l is not pronounced, such as:

• الشمس pronounced ash-shams

But with الأثاث, you say:

• al-athāth

not:

• ath-athāth