الخميس الجاي عندي اجتماع تاني بالشركة.

A natural Levantine pronunciation is:

il-khamīs il-jāy ʿandī ijtimāʿ tāni bish-shirke

A rough breakdown:

• الخميس → il-khamīs = Thursday
• الجاي → il-jāy = coming / next
• عندي → ʿandī = I have / at me
• اجتماع → ijtimāʿ = meeting
• تاني → tāni = another / second
• بالشركة → bish-shirke = at the company

The ʿ in ʿandī and ijtimāʿ represents the letter ع, a sound English does not have.

In Arabic, the days of the week are normally used with الـ.

So:

• الخميس = Thursday
• الجمعة = Friday
• السبت = Saturday

Even though English just says Thursday, Arabic usually says the Thursday in form. That is simply how day names work.

Arabic often does not need a preposition before days of the week.

So:

• الخميس الجاي = next Thursday

This is perfectly natural without a separate word for on.

You can sometimes hear more expanded phrasing in other contexts, but in everyday Levantine, leaving out on is normal.

الجاي literally means coming, and in time expressions it usually means next.

So:

• الخميس الجاي = the coming Thursday = next Thursday

This is very common in Levantine.

Because Arabic adjectives normally come after the noun they describe.

So Arabic says:

• الخميس الجاي = literally Thursday the-coming

not:

• الجاي الخميس

This is standard Arabic word order for adjectives.

Because adjectives in Arabic usually match the noun in definiteness.

Here:

• الخميس is definite
• so الجاي is also definite

That is why you get:

• الخميس الجاي

not normally:

• الخميس جاي

In other words, both words behave as a matched noun + adjective pair.

This is a very common Arabic pattern.

عند originally means something like at or by, and with attached pronouns it can express possession:

• عندي = at me = I have
• عندك = at you = you have
• عنده = at him = he has

So:

• عندي اجتماع = literally At me [there is] a meeting
• natural English: I have a meeting

Because colloquial Arabic usually does not use a separate verb like English have in this kind of sentence.

Instead, possession is often expressed with words like:

• عندي = I have
• معي = I have / with me
• إلي in some other structures or dialects

So عندي اجتماع is the normal way to say I have a meeting.

تاني can mean either:

• another
• second

The exact meaning depends on context.

So اجتماع تاني could mean:

• another meeting
• a second meeting

In this sentence, many learners would understand it as another meeting, but if the context is about counting meetings, it could also mean a second meeting.

For the same basic reason as الجاي: descriptive words usually come after the noun in Arabic.

So:

• اجتماع تاني = meeting another / second

This is the normal Arabic order, even though English says another meeting.

بالشركة is made of:

• بـ = in / at
• الشركة = the company

So بالشركة means:

• in the company
• at the company
• sometimes more naturally in English, at work

In this sentence, at the company or at work both make sense depending on context.

Because two things are happening:

1. بـ + الـ combine

   • بـ
     • الشركة → بالشركة

2. The ل of الـ is absorbed before certain letters, including ش
   So الشركة is pronounced more like ish-shirke, not il-shirke.

That is why the whole word sounds like:

• bish-shirke

This is a very common pronunciation pattern in Arabic.

It is clearly natural colloquial Levantine.

A more Modern Standard Arabic version would be something like:

• الخميس القادم لديّ اجتماع آخر في الشركة

Some Levantine clues in your sentence are:

• الجاي for next
• تاني for another/second
• the everyday use of عندي for I have

So this sentence sounds like normal spoken Levantine, not formal written Arabic.

Usually, yes: it normally means next Thursday.

But just like in English, real-life interpretation can depend on context. Sometimes people may mean:

• the upcoming Thursday
• or the Thursday of the following week

If there is any chance of confusion, speakers often clarify with extra wording, dates, or context.