Numbers 1–10 in Arabic

In Brief

Arabic numbers change form according to the gender of the thing counted. One and two agree with the noun: كتاب واحد “one book,” سيارة واحدة “one car.” From three to ten, the pattern reverses: use the form with ـة before a masculine noun (ثلاثة كتب) and the form without it before a feminine noun (ثلاث سيارات); the counted noun is plural.

Overview

Numbers are among the first topics at A1, but an Arabic number is not simply an unchanging word placed before a noun. A noun is a word for a person, place, thing, or idea, such as كتاب “book” or سيارة “car.” Arabic nouns have grammatical gender, and that gender affects the form of the number used with them. This is unfamiliar to English speakers because English uses the same three in both “three books” and “three cars.”

Arabic also treats one, two, and three through ten as three different grammatical patterns. With one, the singular noun normally comes first. With two, Arabic usually puts the noun itself into the dual (a form meaning exactly two), so a separate word for “two” is often unnecessary. With three through ten, the number comes first and the noun becomes an indefinite genitive plural. Genitive is a grammatical case—a form that marks relationships between words; in unvowelled Arabic writing, its ending is often invisible.

This article teaches the system used in Modern Standard Arabic (MSA). Everyday spoken varieties use many of the same number stems, but pronunciation, case endings, and sometimes sentence patterns vary by region. Learn the clear MSA pattern first, then notice how speakers in the variety you study simplify it.

How It Works

The digits and basic forms

Arabic is commonly written with Eastern Arabic digits in much of the Arab world. The corresponding Western digits are also widely understood and are common in some regions and contexts.

Western digit	Eastern Arabic digit	With a masculine noun	With a feminine noun	Approximate transliteration
1	١	واحد	واحدة	wāḥid / wāḥida
2	٢	اثنان	اثنتان	ithnān / ithnatān
3	٣	ثلاثة	ثلاث	thalātha / thalāth
4	٤	أربعة	أربع	arbaʿa / arbaʿ
5	٥	خمسة	خمس	khamsa / khams
6	٦	ستة	ست	sitta / sitt
7	٧	سبعة	سبع	sabʿa / sabʿ
8	٨	ثمانية	ثماني	thamāniya / thamāni
9	٩	تسعة	تسع	tisʿa / tisʿ
10	١٠	عشرة	عشر	ʿashara / ʿashr

The two columns are labelled by the gender of the noun, not by a claim that the endings look intuitively masculine or feminine. The surprising part is that three through ten use reverse agreement. The transliterations are pronunciation aids, not replacements for learning the Arabic script.

Multi-digit figures keep their normal internal order even inside right-to-left Arabic text: ١٠ is ten, not one. In fonts or mixed Arabic-English lines, punctuation and digits may shift visually, so read the numeral as a unit.

One: noun first, matching number

For one, use a singular noun followed by واحد with a masculine noun or واحدة with a feminine noun. The number behaves much like an adjective—a describing word—and agrees with the noun.

Pattern	Arabic	Meaning
masculine singular noun + واحد	كتاب واحد	one book
feminine singular noun + واحدة	سيارة واحدة	one car

Arabic often does not need واحد/واحدة merely to show that a noun is singular. كتاب can mean “a book” without adding واحد. Add the number when “one” is important: one rather than two, one particular item, or only one.

Two: use the dual

Arabic has singular, dual, and plural noun forms. The dual itself expresses “two,” so كتابان already means “two books,” and سيارتان means “two cars.” In the basic nominative form—the case normally used for the subject of a simple sentence—the common ending is ـان.

Basic phrase	Meaning	Emphatic version
كتابان	two books	كتابان اثنان
سيارتان	two cars	سيارتان اثنتان

When اثنان/اثنتان is stated, it normally follows the dual noun and agrees with it. It adds emphasis or clarity; it is not the ordinary way to build the phrase from an unchanged plural noun. Case changes produce كتابين / سيارتين and اثنين / اثنتين in accusative or genitive positions. You do not need to master those case labels at A1, but you will often see the ـين forms after prepositions or as objects.

Three through ten: reverse gender

For three through ten, the number normally comes before the noun. The number takes the form opposite to the counted noun’s gender:

• With a masculine singular dictionary form, use the number form ending in ـة: ثلاثة كتب “three books.”
• With a feminine singular dictionary form, use the number form without ـة: ثلاث طالبات “three female students.”

This is often called gender polarity or reverse gender agreement. To choose correctly, check the gender of the singular noun, even though the noun in the finished phrase is plural.

Singular noun	Gender	Counted phrase	Meaning
كتاب	masculine	ثلاثة كتب	three books
رجل	masculine	خمسة رجال	five men
طالبة	feminine	ثلاث طالبات	three female students
سيارة	feminine	سبع سيارات	seven cars

Do not decide from the visual shape of the plural alone. كتب does not display an obvious gender ending, but its singular كتاب is masculine, so it takes ثلاثة. Likewise, نساء “women” has no ـات ending, but its singular reference is feminine, so “four women” is أربع نساء.

The noun after three through ten

The counted noun after three through ten has three important properties:

1. It is plural: كتب, not كتاب.
2. It is normally indefinite: “books,” not “the books.”
3. It is genitive because it completes the number phrase.

In ordinary unvowelled text, the genitive marking may not be visible: ثلاثة كتب. With full vowel marks, the phrase can appear as ثلاثةُ كتبٍ when the whole phrase is nominative. The number changes case according to its role in the sentence, while كتبٍ remains genitive as the counted noun.

The case is visible with a regular masculine plural. Compare المعلمون “the teachers” in a nominative context with خمسة معلمين “five teachers.” After the number, معلمين has the genitive/accusative ـين ending, not nominative ـون.

A compact beginner decision guide

Ask these questions in order:

1. How many? One, two, or three through ten?
2. What is the singular noun? Find its gender and learn its plural.
3. For one: use singular noun + matching واحد/واحدة.
4. For two: use the dual noun; add matching اثنان/اثنتان only if needed.
5. For three through ten: put the number first, reverse its gender form, then use the genitive plural noun.

Examples in Context

Arabic	English	Note
عندي كتاب واحد.	I have one book.	Masculine singular + واحد
اشترت سيارة واحدة.	She bought one car.	Feminine singular + واحدة
في الغرفة كرسيان.	There are two chairs in the room.	The dual noun expresses two
رأيت طالبين اثنين.	I saw two male students.	Object position uses ـين; اثنين adds emphasis
قرأت ثلاثة كتب.	I read three books.	Masculine كتاب takes ثلاثة
حضرت ثلاث طالبات.	Three female students attended.	Feminine طالبة takes ثلاث
في البيت أربع غرف.	There are four rooms in the house.	Feminine غرفة takes أربع
قابلنا خمسة رجال.	We met five men.	Masculine رجل takes خمسة
تعمل هنا ست موظفات.	Six female employees work here.	Feminine موظفة takes ست
اشتريت سبعة أقلام.	I bought seven pens.	Masculine قلم takes سبعة
في الصف ثماني طالبات.	There are eight female students in the class.	Feminine طالبة takes ثماني
زرنا تسعة متاحف.	We visited nine museums.	Masculine متحف takes تسعة
انتظرت عشر دقائق.	I waited ten minutes.	Feminine دقيقة takes عشر
حفظت عشرة أسماء.	I memorized ten names.	Masculine اسم takes عشرة

Common Mistakes

Using the same number form with every noun

• Wrong: ثلاث سيارات and ثلاث كتب
• Right: ثلاث سيارات but ثلاثة كتب
• Why: From three through ten, the number form reverses according to noun gender. سيارة is feminine; كتاب is masculine.

Treating one like English word order

• Wrong: واحد كتاب
• Right: كتاب واحد
• Why: In a normal counted phrase, one follows the singular noun and agrees with it, like an adjective.

Using a plural noun for two

• Wrong: اثنان كتب
• Right: كتابان or, with emphasis, كتابان اثنان
• Why: Arabic normally uses the dual noun for exactly two. The full word اثنان does not replace the dual ending in the basic pattern.

Leaving the noun singular after three through ten

• Wrong: خمسة رجل
• Right: خمسة رجال
• Why: The counted noun must be plural after a simple number from three to ten. Learn common broken plurals such as رجل → رجال as vocabulary.

Guessing gender from the plural ending

• Wrong: ثلاثة طالبات
• Right: ثلاث طالبات
• Why: Choose the number from the gender of the singular طالبة, which is feminine. The plural is used in the phrase, but the singular tells you the gender.

Using the nominative masculine plural after the number

• Wrong in formal MSA: خمسة معلمون
• Right: خمسة معلمين
• Why: The counted noun after three through ten is genitive. This becomes visible with the regular masculine plural ending ـين.

Usage Notes

Figures versus words

Prices, dates, addresses, timetables, and statistics often use digits: ٥ كتب, ١٠ دقائق. The grammatical form of the noun does not disappear just because the number is written as a figure. When reading ٥ كتب aloud, you still choose خمسة كتب because كتاب is masculine.

Eastern Arabic digits ١ ٢ ٣ are common across many Arabic-speaking countries. Western digits 1 2 3 are especially common in digital, technical, and North African contexts. Digit choice is a writing convention; it does not change the grammar.

Formal Arabic and everyday speech

The rules above are the dependable MSA standard for formal writing, news, education, and careful speech. Spoken Arabic varieties commonly drop case endings, and their pronunciation of the number words can differ considerably. The core contrast in phrases such as “three books” and “three cars” often remains recognisable, but do not assume that every region realizes every MSA ending in conversation.

When “one” and “two” are explicit

Because singular and dual noun forms already carry number information, واحد/واحدة and اثنان/اثنتان often add contrast: “one, not more” or “exactly two.” In labels, arithmetic, telephone numbers, or counting aloud, number words can of course stand alone. That standalone use should not be copied directly into a noun phrase.

Beyond the Basics / Advanced Use

You do not need to master these details immediately, but they explain forms you will meet later.

Case endings on two

The citation forms اثنان and اثنتان are nominative. In accusative and genitive positions they become اثنين and اثنتين. Dual nouns change in parallel:

Nominative	Accusative/genitive	Meaning
كتابان اثنان	كتابين اثنين	two books
سيارتان اثنتان	سيارتين اثنتين	two cars

Unvowelled spelling still shows this difference, unlike many short case vowels.

The special behaviour of eight

Eight is slightly irregular. Before a feminine counted noun, you commonly see ثماني: ثماني طالبات “eight female students.” When the word stands alone in some case environments, it may appear as ثمانٍ. At beginner level, learn the useful phrase contrast ثمانية كتب versus ثماني طالبات and leave the full case paradigm for later.

Definite groups

For an indefinite quantity, say ثلاثة كتب “three books.” A common way to identify a definite set is to place the definite noun first and use a definite number after it: الكتب الثلاثة “the three books,” الطالبات الثلاث “the three female students.” This resembles an adjective construction and differs from the basic indefinite counting phrase.

Numbers above ten

Do not extend the three-to-ten rule mechanically to every larger number. Eleven and twelve have their own agreement patterns; thirteen through nineteen combine two components; the tens and compound numbers introduce further case and noun-form rules. The polarity learned here remains important, but it becomes only one part of the system in Numbers 11–100.

Practice Tips

1. Learn nouns in threes: record the singular, gender, and plural together—كتاب، مذكر، كتب and سيارة، مؤنث، سيارات. Then build one phrase with three and one with seven. This prevents guessing from the plural.
2. Drill the three patterns separately: say كتاب واحد، كتابان، ثلاثة كتب, then repeat with a feminine noun: سيارة واحدة، سيارتان، ثلاث سيارات. Changing only one noun makes the word order and gender reversal easier to notice.
3. Read real numbers aloud: take a shopping list or timetable written with digits and expand each item into words. Check both the number form and the noun form rather than practising the numbers in isolation.

Related Concepts

• Prerequisite: Noun Gender — needed to choose the correct form of every counted number.
• Next step: Numbers 11–100 — extends agreement to teens, tens, and compound numbers.
• Next step: Time Expressions — applies numbers to hours, minutes, dates, and schedules.
• Later topic: Ordinal Numbers — covers forms such as “first,” “second,” and “third.”