هذه فتاة.

هذه means this when referring to a feminine singular noun.

In هذه فتاة, it points to فتاة and agrees with it in gender:

• هذه = this (for feminine singular)
• هذا = this (for masculine singular)

So you use هذه because فتاة is feminine.

Because فتاة is a feminine noun, and Arabic demonstratives must agree with the noun they refer to.

So:

• هذه فتاة = This is a girl
• If the noun were masculine, you would use هذا instead:
  • هذا ولد = This is a boy

This kind of agreement is very important in Arabic.

In Arabic, the present-tense verb to be is usually not stated in simple sentences like this.

So Arabic says:

• هذه فتاة Literally: this girl But it means:
• This is a girl

This is normal in Arabic. The verb is is understood.

Arabic does not have a separate word for the indefinite article a/an.

So فتاة can mean:

• a girl

If the noun were definite, Arabic would usually add الـ:

• الفتاة = the girl

So:

• هذه فتاة = This is a girl
• هذه الفتاة = This is the girl / This girl

Both are possible, but they mean slightly different things.

• هذه فتاة = This is a girl

  • The noun is indefinite
  • It identifies what the person is

• هذه الفتاة = This is the girl / This girl

  • The noun is definite
  • It points to a specific known girl

So in your sentence, the speaker is introducing or identifying someone as a girl, not referring to a specific already-known girl.

A common pronunciation is:

• hādhihi fatāh

If full case endings are pronounced very carefully in formal Arabic, it can be:

• hādhihi fatātun

A few notes:

• ذ in هذه sounds like th in this
• The final ة in فتاة is usually pronounced like -ah when stopping
• In very formal reading with endings, it becomes -tun

The letter ذ is pronounced like the th in this, that, or mother.

So:

• هذه begins with a sound close to hā-dhi-hi

Be careful not to pronounce it like:

• z
• d
• or the th in think

Arabic has two different th-like sounds:

• ث = like th in think
• ذ = like th in this

Here, هذه uses ذ.

The final ة is called tāʾ marbūṭa. It is very common in feminine nouns.

In many cases, it marks the word as feminine. So فتاة is a feminine noun, which is one reason هذه must also be feminine.

How it sounds:

• At the end of a sentence or when pausing, ة usually sounds like -ah
• When grammatical endings or suffixes are added, it often sounds like t

That is why:

• in pause: fatāh
• in full formal pronunciation: fatātun

Most everyday Arabic writing leaves out short vowel marks.

So you usually see:

• هذه فتاة

But a fully vocalized version could be:

• هٰذِهِ فَتاةٌ

Arabic readers normally supply the short vowels from context.

For learners, this can feel strange at first, but it is completely normal in Arabic texts.

A fully vocalized version is:

• هٰذِهِ فَتاةٌ

This shows:

• هٰذِهِ = hādhihi
• فَتاةٌ = fatātun

The ٌ on فتاةٌ is called tanwīn and often marks an indefinite noun in this kind of sentence.

In normal writing, these marks are often omitted:

• هذه فتاة

This is because of pause pronunciation and case endings.

When stopping at the end of the sentence, Arabic usually drops the case ending, so:

• فتاة is pronounced fatāh

In careful formal pronunciation, the nominative ending appears:

• فتاةٌ = fatātun

Both relate to the same word. Learners will often hear the pause form more often in natural speech and recitation at sentence ends.

It is a nominal sentence in Arabic, meaning a sentence built without an explicit present-tense verb.

Very roughly:

• هذه = the topic / what is being pointed out
• فتاة = the information about it

So the sentence structure is something like:

• This — a girl which English expresses as:
• This is a girl

This pattern is very common in Arabic.

For a basic beginner sentence like this, هذه فتاة is the natural order.

You should learn it as:

• هذه فتاة

Arabic can sometimes change word order for emphasis or style, but at this stage, the important pattern is:

• demonstrative + noun
• هذه فتاة
• هذا ولد

So yes, for a simple statement like this, this is the normal order to use.

No. هذه can be used with any feminine singular noun, whether it refers to a person or a thing.

For example:

• هذه سيارة = This is a car
• هذه مدرسة = This is a school
• هذه فتاة = This is a girl

What matters is that the noun is grammatically feminine and singular.

You would change the demonstrative to the masculine singular form:

• هذا ولد = This is a boy

Compare:

• هذه فتاة = This is a girl
• هذا ولد = This is a boy

So the main change is:

• هذه for feminine
• هذا for masculine