المساحات جديدة.

In Arabic, the verb to be is usually not written or spoken in the present tense in simple sentences like this.

So:

• المساحات جديدة = The spaces/areas are new

There is no separate word for are here. Arabic often makes this kind of sentence by putting:

• the subject first: المساحات
• then the predicate/adjective: جديدة

If you wanted the past or future, Arabic would use a verb, for example with كان (was/were).

This is one of the most important grammar points in Arabic.

المساحات is a non-human plural noun. In Modern Standard Arabic, non-human plural nouns usually take a feminine singular adjective.

So although المساحات means spaces/areas and is plural, the adjective is:

• جديدة = feminine singular

not:

• جديدات
• جدد

This is normal Arabic grammar.

So:

• المساحات جديدة = correct

This same pattern happens a lot:

• الكتب مفيدة = The books are useful
• البيوت كبيرة = The houses are big

Even though books and houses are plural, the adjective is feminine singular because they are non-human plurals.

Because this is a full sentence, not just a noun phrase.

• المساحات = the spaces / the areas
• جديدة = new

Together: The spaces are new.

In Arabic nominal sentences, the subject can be definite, while the predicate is often indefinite.

So this pattern is normal:

• الكتاب جديد = The book is new
• السيارة سريعة = The car is fast
• المساحات جديدة = The spaces are new

If both words were definite, the meaning would usually change into a noun phrase, not a complete sentence.

This is a very common question.

1. المساحات جديدة

This is a sentence.

• المساحات = the spaces/areas
• جديدة = new

Meaning: The spaces are new.

2. المساحات الجديدة

This is a noun phrase.

Meaning: the new spaces or the new areas

Here, الجديدة is definite because it directly describes المساحات as an adjective inside one phrase.

So:

• المساحات جديدة = The spaces are new.
• المساحات الجديدة = the new spaces

That difference between predicate adjective and attributive adjective is very important in Arabic.

The singular is:

• مساحة = space, area

The plural is:

• مساحات = spaces, areas

This is a sound feminine plural form, usually made by replacing the final ـة with ـات:

• مساحة → مساحات

Even though مساحة refers to a thing and not a female person, it still takes this plural pattern. That is completely normal in Arabic.

A careful pronunciation is:

• al-masāḥāt jadīdah

A slightly more detailed breakdown:

• ال = al-
• مساحات = ma-saa-ḥaat
• جديدة = ja-dee-dah

A few pronunciation notes:

• ح in مساحات is a deep, breathy h sound, not like English h exactly.
• ج in Modern Standard Arabic is often pronounced like j in judge.
• The long vowels matter:
  • ā in masāḥāt
  • ī in jadīda

It is feminine for two related reasons:

1. Its basic form is feminine singular

جديدة is the feminine singular form of new.

Compare:

• جديد = masculine singular
• جديدة = feminine singular

2. Non-human plurals take feminine singular agreement

Because المساحات is a non-human plural, Arabic treats it grammatically like a feminine singular for adjective agreement.

So even though the meaning is plural, the grammar calls for:

• جديدة

This is why the sentence does not use جديد.

The fully vocalized form is:

• المساحاتُ جديدةٌ

The ending ـُ on المساحاتُ and ـٌ on جديدةٌ show the nominative case.

That is because in a basic nominal sentence:

• the subject (المبتدأ) is nominative
• the predicate (الخبر) is also nominative

In normal everyday writing, these short vowel endings are usually omitted, so you normally see:

• المساحات جديدة

Yes. مساحة can have several related meanings depending on context, such as:

• space
• area
• surface area
• room/extent
• sometimes even distance or field of room/opportunity, depending on usage

So المساحات جديدة could mean:

• The spaces are new
• The areas are new

The exact best translation depends on context.

The normal and easiest form here is:

• المساحات جديدة

That is the standard subject + predicate order for a simple nominal sentence.

Arabic can sometimes change word order for emphasis or style, but for a learner, this is the best pattern to use and recognize first:

• definite noun
  • indefinite adjective/predicate

So this sentence is a very useful model:

• الطلاب حاضرون = The students are present
• المدارس بعيدة = The schools are far
• المساحات جديدة = The spaces are new

You would say:

• مساحات جديدة = new spaces
• المساحات الجديدة = the new spaces

Here the adjective is part of the noun phrase, so it matches the noun in definiteness:

• مساحات
  • جديدة = both indefinite
• المساحات
  • الجديدة = both definite

Compare all three carefully:

• مساحات جديدة = new spaces
• المساحات الجديدة = the new spaces
• المساحات جديدة = the spaces are new

This is one of the most useful contrasts for beginners in Arabic.