زوجته في البيت.

A natural Egyptian pronunciation is gozto fil-bēt or gōzto fil-bēt.

A few useful details:

• ج is usually pronounced g in Egyptian Arabic.
• The vowel in زوجـ is often pronounced like a long o.
• -ه at the end is usually heard as -o in speech here.
• في البيت is commonly pronounced together as fil-bēt.

So the whole sentence often sounds more like gozto fil-bēt than a careful letter-by-letter reading.

It means his.

So:

• زوجة = wife
• زوجته = his wife

In Egyptian Arabic, this -ه is often pronounced -o after a consonant, which is why زوجته sounds like gozto.

Because the final ة behaves like a t when another ending is attached.

This is a very common pattern in Arabic:

• زوجة on its own ends with ة
• when a suffix is added, that ة shows its t sound:
  • زوجته = his wife

So the t is not random; it comes from the feminine ending.

In Arabic, the verb to be is usually left out in the present tense.

So a sentence like:

• زوجته في البيت

literally looks like:

• his wife in the house

but it naturally means:

• His wife is at home / in the house

This is normal in both Egyptian Arabic and Standard Arabic.
If you wanted the past, then a verb would appear, for example with was.

Because a noun with a possessive suffix is already definite.

So:

• زوجة = a wife / wife
• زوجته = his wife

Once you say his wife, it is already specific, so you do not add الـ.
In other words, زوجته is already definite by meaning.

Literally, it means in the house.

But in natural English translation, it can often mean:

• at home
• in the house

Which one sounds best depends on context. In many everyday situations, في البيت is used where English would simply say at home.

Because in Egyptian Arabic, speakers usually connect the words in fast, natural speech.

What is happening:

• في = fi
• البيت = il-bēt
• together they often become fi l-bēt, which sounds like fil-bēt

So the writing stays في البيت, but the spoken form is smoother and more connected.

It is understandable, and people will understand it, but it can sound a bit more formal or less everyday than another common Egyptian choice.

In very everyday Egyptian, many speakers would more naturally say:

• مراته في البيت = his wife is at home

So:

• زوجته = correct and understandable
• مراته = often more colloquial and common in everyday Egyptian speech

Yes, but the meaning or emphasis may change.

The neutral order is:

• زوجته في البيت
  • His wife is at home

If you put the location first:

• في البيت زوجته

that can sound more marked or emphatic, as if you are focusing on where she is. It is possible, but not the most neutral basic order for a beginner to use.

It can do either, depending on context.

Literally:

• البيت = the house / the home

But in many everyday situations, Arabic uses البيت where English would simply say home. So in this sentence, it may refer to:

• the person’s home in general, or
• a particular house already understood from context

That is why English may translate it as either at home or in the house.