كتبت موعد الاجتماع على اول صفحة بالدفتر.

It can mean either one in unvocalized writing.

• كتبت = katabt = I wrote
• كتبت = katabet in Levantine / katabat in MSA = she wrote

Arabic usually leaves out short vowels in normal writing, so the spelling is the same. Context tells you which one is meant. If the meaning shown to you is I wrote, then you should understand it as katabt.

Also, for I wrote, Arabic does not show the speaker’s gender here. A man and a woman both say كتبت for I wrote.

Because Arabic verbs already include the subject.

So كتبت by itself already means I wrote or she wrote, depending on context. That means you usually do not need to add أنا.

• كتبت موعد الاجتماع... = I wrote the meeting date/time...
• أنا كتبت موعد الاجتماع... = I wrote the meeting date/time... with extra emphasis on I

In Levantine, leaving out the pronoun is very normal.

This is because of an idafa construction, often called a construct phrase.

• موعد = date / time / appointment
• الاجتماع = the meeting

When two nouns are linked like this, Arabic often expresses X of Y without using a separate word for of.

So:

• موعد الاجتماع = literally date/time of the meeting
• In natural English: the meeting date, the meeting time, or the time of the meeting, depending on context

Even though موعد itself does not have الـ, the whole phrase becomes definite because the second noun is definite: الاجتماع.

موعد is a flexible word. Depending on context, it can mean:

• appointment
• date
• time
• scheduled time

So موعد الاجتماع could mean:

• the meeting time
• the meeting date
• the meeting appointment/schedule

The exact English translation depends on the context already given to the learner.

In Levantine, you may also hear ميعاد in some areas or speakers, with a very similar meaning.

الاجتماع means the meeting, so it refers to a specific meeting.

• موعد الاجتماع = the meeting’s time/date
• موعد اجتماع = a meeting time/date or the time/date of a meeting

So the الـ on الاجتماع matters. It tells you this is a known, specific meeting, not just any meeting.

Because Arabic treats a page as a surface, just like English often does with on.

• على صفحة = on a page
• على أول صفحة = on the first page

That matches English pretty closely here. You write on a page, not inside a page.

In Levantine speech, على is often pronounced short as عَ or written informally as ع.

So a speaker might say:

• عَ أول صفحة

instead of carefully pronouncing full على أول صفحة.

Both can work, but بالدفتر is very natural in Levantine.

Here بـ often has a broad range of meanings such as:

• in
• at
• with
• by

So:

• بالدفتر here means in the notebook

The sentence is basically:

• on the first page in the notebook

You could also hear:

• في الدفتر = in the notebook

But بالدفتر sounds very normal in colloquial Levantine.

Also, with الـ, the preposition joins onto the noun:

• بـ + الدفتر = بالدفتر

And in pronunciation, because د is a sun letter, people often pronounce it like bid-daftar rather than clearly saying the l.

Both are possible, but they feel a little different in style.

• أول صفحة = the first page / first page
• الصفحة الأولى = the first page in a more formal or standard-style way

In Levantine, أول صفحة is very common and natural.

So:

• على أول صفحة بالدفتر sounds colloquial and straightforward
• على الصفحة الأولى في الدفتر sounds more formal / more MSA-like

A learner should get used to both patterns.

In standard spelling, it should be أول with a hamza.

So the fully standard spelling would be:

• كتبت موعد الاجتماع على أول صفحة بالدفتر.

But in casual writing, many native speakers leave out hamzas, especially in texting or informal notes, so اول is very common to see.

So:

• أول = standard spelling
• اول = very common informal spelling

A natural Levantine-style pronunciation might be something like:

• katabt mawʿed il-ijtimāʿ ʿa awwal safḥa bid-daftar

A few notes:

• كتبت = katabt
• على often becomes ʿa
• أول sounds like awwal
• بالدفتر is often pronounced bid-daftar because of sound assimilation

Depending on the country or speaker, pronunciation can vary a bit, especially for words like موعد and اجتماع.

It is understandable and natural, but it sits a little between colloquial and standard.

Why?

• كتبت = totally normal
• على أول صفحة بالدفتر = very natural in Levantine
• اجتماع is a standard/common word and also used in spoken language, especially for school, work, or formal situations

A very colloquial spoken version might sound like:

• كتبت موعد الاجتماع عَ أول صفحة بالدفتر

The main difference is usually pronunciation and small spelling shortcuts, not the whole structure.

So yes, a Levantine learner should recognize this as a useful and pretty natural sentence.