البنت وصلت عالمدرسة الصبح.

Yes. بنت can mean girl or daughter, depending on context.

• بنت = girl / daughter
• البنت = the girl / the daughter

In a sentence like this, without extra family context, English usually translates it as the girl.

الـ is the Arabic definite article, equivalent to the in English.

So:

• بنت = a girl / girl
• البنت = the girl

In Levantine speech, this article is often pronounced more like il- or el- rather than a careful al-.

Because the verb is agreeing with a feminine singular subject: البنت.

The base verb is وصل = to arrive.
In the past tense:

• وصل can be the base form you see in dictionaries
• وصلت = she arrived

So وصلت by itself already tells you the subject is she.
When you add البنت, you make that subject explicit: the girl arrived.

Yes, البنت وصلت is completely normal in Levantine Arabic.

In spoken Levantine, subject + verb is very common:

• البنت وصلت = the girl arrived

You can also hear وصلت البنت, especially in more formal styles or depending on emphasis, but subject + verb is very natural in everyday speech.

عالمدرسة is a combination of:

• عَ = a short colloquial form of على
• المدرسة = the school

So:

• عَ المدرسة
• عالمدرسة

In this sentence, it means to the school or at the school, but with وصلت the natural English meaning is arrived at the school / arrived to the school.

That is a very common learner question.

In Levantine Arabic, عَ is extremely common and covers several meanings that English splits into different prepositions, such as:

• to
• at
• sometimes on

With verbs of movement like وصل (arrive), عَ is very natural:

• وصلت عالمدرسة = she arrived at/to the school

So even though على often literally means on, colloquial عَ is much broader in actual usage.

Because Arabic often attaches short grammatical elements directly to the following word.

Here you have:

• عَ
  • المدرسة

and in writing that commonly appears as:

• عالمدرسة

This is very normal in Arabic script. Prepositions, articles, and conjunctions are often attached rather than written separately.

الصبح means the morning, but in sentences like this it functions as a time expression meaning in the morning.

So:

• الصبح = the morning / in the morning

Arabic often uses time words directly without needing a separate preposition like English in.

So:

• وصلت عالمدرسة الصبح = the girl arrived at the school in the morning

Because of the sun letter / moon letter rule.

• In المدرسة, the letter م is a moon letter, so the ل in الـ is pronounced.
• In الصبح, the letter ص is a sun letter, so the ل is not pronounced; instead, the ص is doubled.

So roughly:

• المدرسة → al-madrase / el-madrase
• الصبح → aṣ-ṣubḥ / eṣ-ṣobeh depending on dialect and pronunciation style

This is why learners often hear something like essobeh rather than a full alsobeh.

ع is one of the sounds English speakers usually find hardest.

A simple practical answer: it is a deep throat sound made lower in the throat than English sounds. There is no exact English equivalent.

For beginners, the most important thing is:

• notice that it is a real consonant
• do not completely ignore it if you can help it

In عالمدرسة, many speakers pronounce it very lightly in fast speech, but it is still part of the word.

It is colloquial Levantine Arabic.

Clues include:

• عالمدرسة instead of a more formal phrasing with إلى
• الصبح as a natural spoken time expression
• no case endings
• overall everyday spoken structure

A more MSA-style version would be something like:

• وصلت البنت إلى المدرسة صباحًا
• وصلت البنت إلى المدرسة في الصباح

So the sentence you were given is the kind of Arabic people would naturally say in conversation in the Levant.