اختي وصلت البيت متاخر امبارح وهي لسه تعبانة النهارده.

A rough pronunciation is:

okhti weṣlet el-bēt mota'akhkhar embāreḥ, we heyya lessa ta'bāna en-naharda

A few notes:

• You may also hear slightly different vowels, like ukhti / okhti or embāriḥ / embāreḥ.
• Egyptian Arabic spelling is not fully standardized, so pronunciation guides can vary a little.

A helpful breakdown is:

• اختي = my sister
• وصلت = arrived / got to
• البيت = the house / home
• متاخر = late
• امبارح = yesterday
• وهي = and she / while she
• لسه = still
• تعبانة = tired (feminine)
• النهارده = today

So the overall structure is:

My sister arrived home late yesterday, and she is still tired today.

Because اختي means my sister, which is feminine.

In the past tense, Egyptian Arabic marks she on the verb with -ت:

• وصل = he arrived
• وصلت = she arrived

So اختي وصلت means my sister arrived.

In Egyptian Arabic, it is very natural to say وصل البيت or وصلت البيت for arrived home.

So:

• البيت literally means the house
• but in context it often means home

Arabic does not always need a separate word matching English to here.
You may also hear وصلت للبيت, which also means she arrived at home / at the house.

متاخر means late.

There are two useful things to know here:

1. Spelling:
   In more careful spelling, this would usually be متأخر.

2. Gender:
   Since the subject is my sister, many learners expect متأخرة, and that is a very reasonable, clear form to use.

In casual Egyptian writing, however:

• spelling is often simplified
• hamzas are often dropped
• agreement is not always written very carefully in chat-style text

So for a learner, متأخرة is a very safe and clear choice, but the written متاخر is the kind of informal spelling you may run into.

Yes. امبارح is the Egyptian Arabic word for yesterday.

Its pronunciation is roughly embāreḥ or embāriḥ.

In Modern Standard Arabic, you would more often see أمس for yesterday, but in everyday Egyptian speech امبارح is extremely common.

وهي literally means and she.

In this sentence, it introduces the second part:

• وهي لسه تعبانة النهارده

That naturally means:

• and she is still tired today
• or while she’s still tired today

So وهي helps connect the two ideas smoothly.

Because in Arabic, the present-tense to be is usually not spoken.

So:

• هي تعبانة = she is tired
• literally: she tired

That is completely normal in Arabic.

If you wanted was, then Arabic would usually say something explicit, like:

• كانت تعبانة = she was tired

Here, لسه means still.

So:

• لسه تعبانة = still tired

This is a very common Egyptian word. Depending on context, لسه can also relate to ideas like:

• yet
• just now
• only just

But in this sentence, still is the right meaning.

Because it describes اختي = my sister, which is feminine.

The adjective changes for gender:

• تعبان = tired (masculine)
• تعبانة = tired (feminine)

So:

• هو تعبان = he is tired
• هي تعبانة = she is tired

Yes. النهارده is Egyptian Arabic for today.

It is one of the most common everyday time words in Egyptian speech.

In Modern Standard Arabic, the usual word is اليوم, but in Egyptian conversation النهارده is much more natural.

In informal Egyptian writing, people very often simplify spelling:

• hamzas may be omitted
• dialect words may be written in several different ways
• chat spelling is usually much looser than formal Arabic spelling

So:

• اختي is often written instead of أختي
• متاخر is often written instead of متأخر
• امبارح is often written without an initial hamza

A more careful learner-friendly version of the whole sentence would be:

أختي وصلت البيت متأخرة امبارح وهي لسه تعبانة النهارده.

That version makes the feminine adjective more explicit and uses slightly more careful spelling.