Possessive Construction (الإضافة)

Arabic does not use a word for “of” or an apostrophe to show possession. Instead, it places two nouns next to each other — the first noun (the possessed) followed by the second noun (the possessor). This is called the possessive construction or إضافة (idafa).

How It Works

English: the book of the teacher / the teacher**‘s** book Arabic: كتاب المعلم (kitaab al-mu3allim) — literally “book the-teacher”

English	Arabic	Transliteration
the student’s pen	قلم الطالب	qalam aṭ-ṭaalib
the car’s door	باب السيارة	baab as-sayyaara
the house’s roof	سقف البيت	saqf al-bayt
the teacher’s book	كتاب المعلم	kitaab al-mu3allim

Rules of the Idafa

1. No “ال” on the first noun:

✅ كتاب الطالب (book of the student)
❌ الكتاب الطالب

2. The first noun loses its tanween (nunation):

كِتَابٌ (kitaabun, “a book”) → كِتَابُ (kitaabu, “book of…”)

3. The second noun always has “ال” (or is a pronoun):

كتابُ الطالبِ (the student’s book)
كتابُه (his book) — pronoun suffix

Adding Pronoun Suffixes

Instead of a full noun, you can attach a pronoun suffix to show possession:

Meaning	Arabic	Transliteration
my book	كتابي	kitaabee
your (m.) book	كتابك	kitaabuka
your (f.) book	كتابكِ	kitaabuki
his book	كتابه	kitaabuhu
her book	كتابها	kitaabuha
our book	كتابنا	kitaabunaa
their book	كتابهم	kitaabuhum

Chained Idafa (Multiple Nouns)

Arabic allows chaining multiple nouns in an idafa construction. Only the last noun has “ال”:

English	Arabic	Transliteration	Structure
the student’s book	كتاب الطالب	kitaab aṭ-ṭaalib	book + student
the student’s book’s cover	غلاف كتاب الطالب	ghilaaf kitaab aṭ-ṭaalib	cover + book + student
the teacher’s student’s pen	قلم طالب المعلم	qalam ṭaalib al-mu3allim	pen + student + teacher

Key rule: In a chain, the first noun (the one being possessed) never has “ال”. Only the final noun in the chain is definite.

Idafa with Numbers

Numbers interact with the idafa in specific ways:

English	Arabic	Transliteration
two books of the student	كتابا الطالب	kitaabā aṭ-ṭaalib
three books of the student	ثلاثة كتب الطالب	thalāthatu kutub aṭ-ṭaalib
ten books of the student	عشرة كتب الطالب	3asharat kutub aṭ-ṭaalib

Common Idafa Expressions

These fixed expressions use the idafa construction daily:

English	Arabic	Transliteration
in the name of God	بسم الله	bismillāh
the door of the house	باب البيت	baab al-bayt
the language of Arabic	اللغة العربية	al-lughah al-3arabiyyah
the State of Qatar	دولة قطر	dawlat qaṭar
the Republic of Tunisia	تونس الجمهورية	tūnis al-jumhūriyyah

Idafa and Adjectives

When an adjective modifies the first noun in an idafa, it comes after the entire idafa phrase and agrees in gender and definiteness:

English	Arabic	Transliteration
the student’s big book	كتاب الطالب الكبير	kitaab aṭ-ṭaalib al-kabeer
the teacher’s beautiful house	بيت المعلم الجميل	bayt al-mu3allim al-jameel
the student’s new pen	قلم الطالب الجديد	qalam aṭ-ṭaalib al-jadeed

Important: The adjective must agree with the first noun, not the second. In كتاب الطالب الكبير, “big” (كبير) modifies “book” (كتاب), not “student” (الطالب).

Idafa with Pronoun Suffixes (Full Table)

Pronoun	Arabic	Transliteration	Meaning
I	كتابي	kitaabee	my book
You (m.)	كتابك	kitaabuka	your book
You (f.)	كتابكِ	kitaabuki	your book (f.)
He	كتابه	kitaabuhu	his book
She	كتابها	kitaabuha	her book
We	كتابنا	kitaabunaa	our book
They (m.)	كتابهم	kitaabuhum	their book
They (f.)	كتابهن	kitaabuhunna	their book (f.)

Common Mistakes

1. Adding “ال” to the first noun:

❌ الكتاب الطالب
✅ كتاب الطالب

2. Forgetting to remove tanween:

❌ كتابٌ الطالب
✅ كتاب الطالب

3. Confusing idafa with adjective modification:

كتاب الطالب — the student’s book (idafa)
كتاب كبير — a big book (adjective)
الكتاب الكبير — the big book (adjective with “ال”)

Cultural Notes

The idafa construction is fundamental to Arabic grammar and appears in:

Religious texts: بسم الله الرحمن الرحيم (In the name of God, the Most Gracious, the Most Merciful)
Official names: جامعة الملك سعود (King Saud University)
Daily conversation: هذا بيت أبي (This is my father’s house)

Understanding the idafa is essential for reading Arabic texts, from newspapers to religious literature.

Tip: The idafa construction is one of the most important patterns in Arabic. Once you master it, you can build complex noun phrases without any additional vocabulary.