المطبخ وسخ.

In Egyptian Arabic, the verb to be is usually not said in the present tense.

So instead of saying something like the kitchen is dirty, Arabic simply says:

• المطبخ = the kitchen
• وسخ = dirty

This kind of sentence is often called a nominal sentence.

If you want another tense, then a verb appears:

• المطبخ كان وسخ = the kitchen was dirty
• المطبخ هيبقى وسخ = the kitchen will be dirty

Because المطبخ وسخ and المطبخ الوسخ do not mean the same thing.

• المطبخ وسخ = The kitchen is dirty.
• المطبخ الوسخ = the dirty kitchen

In other words:

• وسخ by itself here is the predicate of the sentence
• الوسخ would be an adjective directly describing the noun

This is one of the most important differences for learners to notice.

A common Egyptian pronunciation is il-matbakh or el-matbakh.

A few helpful details:

• الـ is usually pronounced il- / el- in Egyptian, not al-
• The l is pronounced here, because م is a moon letter
• ط sounds like an emphatic t
• خ sounds like the ch in German Bach or Scottish loch

So the whole word is roughly:

el-matbakh

In Egyptian Arabic, it is commonly pronounced something like wisikh or wésikh.

Helpful sound notes:

• It starts with w
• The middle vowel is short
• The final خ is the same rough sound as in Bach / loch

So the full sentence is often heard as:

el-matbakh wisikh

In fast speech, the middle vowel can sound weaker or shorter.

Yes. The adjective/predicate should match the noun in gender and usually number.

Here:

• المطبخ is masculine singular
• so وسخ is also masculine singular

For a feminine noun, the form changes. For example:

• الأوضة وسخة = the room is dirty

So the important rule is:

• it does match in gender/number
• it does not have to match in definiteness here

That is why المطبخ وسخ is correct, not المطبخ الوسخ.

The spelling can work in both Egyptian Arabic and Modern Standard Arabic, but the pronunciation and overall feel are different.

In Egyptian, you would typically say:

• el-matbakh wisikh

In formal MSA, the same words would sound more like:

• al-maṭbakhu wasikh(un) in very careful formal reading

So a learner should know:

• same basic written words
• different pronunciation
• Egyptian does not use the formal case endings of MSA in normal speech

In Egyptian Arabic, the usual way is to use مش:

• المطبخ مش وسخ = the kitchen is not dirty

This is the normal Egyptian pattern for negating this kind of sentence:

• X مش Y

Examples:

• البيت مش كبير = the house is not big
• الأوضة مش نضيفة = the room is not clean

Because Egyptian Arabic normally does not use case endings in everyday speech.

A learner who has seen MSA may expect endings like:

• -u
• -un

But in Egyptian, you usually just say the words without those endings:

• المطبخ وسخ

This is one of the big differences between spoken Egyptian Arabic and formal written Arabic.

You can, but the meaning changes.

• المطبخ وسخ = the kitchen is dirty
• مطبخ وسخ = a dirty kitchen / dirty kitchen

Without الـ, the noun becomes indefinite.

So if you are talking about one specific kitchen, المطبخ is the natural choice. If you are just describing a kitchen in general or saying a dirty kitchen, then مطبخ وسخ can make sense.