الحيطة حجر.

A common pronunciation is il-ḥēṭa ḥagar.

A rough guide:

• il- = the
• ḥē = a strong h sound from the throat
• ṭ = an emphatic t
• ḥagar = stone

So the whole sentence sounds roughly like il-HEE-ta HAG-ar, but with the special Arabic sounds ḥ and ṭ.

الحيطة means the wall in Egyptian Arabic.

A few useful notes:

• It is an Egyptian colloquial word.
• In Modern Standard Arabic, you are more likely to see الحائط for the wall.
• The ة at the end is very common in Egyptian nouns and often corresponds to a feminine noun.

Here حجر means stone.

In this sentence, it means the wall is made of stone, or that the wall is stone. Depending on context, حجر can also be understood as:

• stone
• rock
• stone material

In Egyptian pronunciation, حجر is usually ḥagar, not ḥajar.

Because Arabic often leaves out is / am / are in simple present-tense sentences.

So:

• الحيطة حجر = The wall is stone
• more naturally in English: The wall is made of stone

This is very normal in Arabic. The sentence is still complete without a separate word for is.

Because الحيطة is the subject, the wall, and حجر is the predicate, stone.

In Arabic nominal sentences, it is very common to have:

• a definite subject
• an indefinite predicate

So:

• الحيطة = the wall
• حجر = stone

This pattern helps show that the sentence means The wall is stone, not The stone is the wall.

Because حجر here is a noun, not an adjective.

If it were an adjective describing the wall, then agreement would matter more. But here حجر is being used as the predicate noun: stone.

So the structure is:

• الحيطة = subject
• حجر = predicate noun

That is why you do not need a feminine form of حجر here.

It is clearly Egyptian because of الحيطة.

Why:

• حيطة is colloquial Egyptian
• Standard Arabic usually uses حائط

A Standard Arabic version might be:

• الحائط حجر or more explicitly:
• الحائط من حجر

So the grammar idea is shared, but the word حيطة is distinctly Egyptian.

Yes, الحيطة من حجر is also very natural and can sound more explicit.

Compare:

• الحيطة حجر = The wall is stone
• الحيطة من حجر = The wall is made of stone

Adding من makes the material relationship clearer. Without من, the shorter version is still normal and understandable.

This is a nominal sentence.

That means it starts with a noun, not a verb. Its basic parts are:

• الحيطة = the subject
• حجر = the predicate

Arabic uses this kind of structure very often for simple statements like:

• الجو حر = The weather is hot
• البيت كبير = The house is big
• الحيطة حجر = The wall is stone

Not really in the most natural English sense.

Word-for-word, حجر is indefinite and could look like a stone, but in this sentence it is better understood as a material noun:

• stone
• made of stone

So the best natural translation is not The wall is a stone, but rather:

• The wall is stone
• The wall is made of stone

They both relate to wall, but they belong to different varieties of Arabic.

• حيطة = Egyptian Arabic, everyday speech
• حائط = Modern Standard Arabic / more formal Arabic

A learner of Egyptian Arabic should definitely recognize حيطة, because it is the common spoken form in Egypt.

In Egyptian Arabic, learners often write it as el- or il-.

So you may see:

• el-ḥēṭa
• il-ḥēṭa

Both are trying to represent Egyptian pronunciation. In careful Egyptian pronunciation, il- is often a good choice, but el- is also very common in teaching materials and transliteration systems.