The five nouns in Arabic

You’ve probably noticed by now that most words in Arabic have three-letter roots, while some have four or even five.

But there are also examples with two-letter roots, often referring to family members or body parts. Let’s take a look at some of them:

Arabic 2 letter root words

What are the 5 special nouns in Arabic?

Five nouns with two-letter roots are considered special because they take a long vowel instead of a short one when annexed or when a personal pronoun suffix is attached.

Depending on the grammatical case, they take:

  • و (-uu) for the nominative

  • ا (-aa) for the accusative

  • ي (-ii) for the genitive

These five nouns are:

The five nouns in Arabic
The most commonly used of these are: أب (father), أخ (brother), and ذو (owner / possessor of). Now let’s see how they change:
The five nouns in Arabic - Father

One important point to highlight is that the personal pronoun suffix comes after the long vowel, and the pronoun for the first person is ي (-ii) or ني (-nii).

So, if I want to say “my father” (or any word ending in u, short or long), the i wins.

Examples:

  • أبو + أناأبي (aby – my father)

  • حُلمُ + أناحُلمي (hulmy – my dream)

Why? Because u + i = ي . Even a short u shifts and becomes ي .

This is extremely important to remember, especially since in many dialects, to say “my father” you simply keep the و :

  • Dialect: أبوي (abuy)

  • Standard Arabic (MSA): أبي (aby) — the و is dropped.

The same applies for “my brother”:

  • Dialect: أخوي (akhuy)

  • Standard Arabic: أخي (akhy).

Let’s look at some more examples:

The five nouns in Arabic - Brother
Now, moving on to ذو , which means “owner” or “possessor.” This word is always followed by the genitive case, and its feminine form is ذات .
The five nouns in Arabic - Owner
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