Masculine: tha-la-THA-ta A-shar (emphasis on 'THA' in first word). Feminine: tha-LA-tha ash-RA-ta (emphasis on 'LA' in first word and 'RA' in second). The 'th' sound is pronounced like 'th' in 'think.' The emphatic 'ṭ' sound in ثلاثة (masculine form) is pronounced with the tongue against the roof of the mouth, creating a deeper sound.
About This Number
The number 13 in Arabic is written as ثلاثة عشر (thalathata ashar) for masculine nouns and ثلاث عشرة (thalatha ashrata) for feminine nouns. It belongs to the compound numbers (11-19) which have unique grammar rules where the first part reverses the expected gender agreement while the second part maintains it.
Usage Examples
ثلاثة عشر رجلاً (thalathata ashar rajulan) - thirteen men (masculine noun takes the masculine form)
ثلاث عشرة امرأةً (thalatha ashrata imra'atan) - thirteen women (feminine noun takes the feminine form)
عندي ثلاثة عشر كتاباً (indi thalathata ashar kitaban) - I have thirteen books
في الفصل ثلاث عشرة طالبةً (fi al-fasl thalatha ashrata talibatan) - In the classroom there are thirteen female students
اشتريت ثلاثة عشر قلماً (ishtaraytu thalathata ashar qalaman) - I bought thirteen pens
السورة الثالثة عشرة (as-surah ath-thalithata ashrata) - the thirteenth chapter (ordinal form)
Grammar Notes
The number 13 exhibits inverse gender agreement (العدد المخالف), meaning the first part contradicts the gender of the counted noun while the second part agrees with it. For masculine nouns, use ثلاثة عشر (thalathata ashar) where ثلاثة is feminine in form but عشر is masculine. For feminine nouns, use ثلاث عشرة (thalatha ashrata) where ثلاث is masculine in form but عشرة is feminine. The counted noun (المعدود) always comes after the number in the singular form with accusative case (منصوب), taking tanween fatah (-an ending). Both parts of the compound number are read together as one unit and are indeclinable (مبني), maintaining the same form regardless of their position in the sentence. When used as an ordinal number (thirteenth), the form changes to الثالث عشر (ath-thalith ashar) for masculine or الثالثة عشرة (ath-thalithata ashrata) for feminine, and both parts become definite with the definite article ال.
Cultural Significance
In Islamic tradition, the number 13 appears in various contexts, though it doesn't carry the negative superstition found in Western culture. The 13th day of Islamic lunar months is considered significant by some, and Friday the 13th holds no special meaning in Arab culture. The number is commonly used in everyday contexts such as ages, dates, prices, and measurements without any particular cultural taboo or special reverence.
Fun Facts
Unlike Western superstition where 13 is considered unlucky, Arab culture does not traditionally associate this number with bad fortune. The compound structure of Arabic numbers 11-19 is unique among Semitic languages and represents an ancient counting system. Interestingly, the number 13 in Arabic literally means 'three and ten,' reflecting how Arabic builds these teen numbers by combining the unit with ten, though the word order in pronunciation differs from the mathematical addition.
## Understanding the Arabic Number 13
The number 13 in Arabic is a compound number that demonstrates one of the most fascinating aspects of Arabic grammar: inverse gender agreement. Written as ثلاثة عشر (thalathata ashar) for masculine nouns and ثلاث عشرة (thalatha ashrata) for feminine nouns, this number requires careful attention to the gender of the noun being counted.
## How to Write and Pronounce 13 in Arabic
Arabic numerals from 11 to 19 are compound numbers formed by combining the unit digit with the word for ten (عشر/عشرة). For the number 13, we combine ثلاثة (three) with عشر (ten). The pronunciation varies based on gender:
- **Masculine form**: ثلاثة عشر (thalathata ashar)
- **Feminine form**: ثلاث عشرة (thalatha ashrata)
The masculine form is pronounced "tha-la-THA-ta A-shar" with emphasis on the middle syllable of the first word. The feminine form is pronounced "tha-LA-tha ash-RA-ta" with slightly different stress patterns. The 'th' represents the Arabic letter ث, which sounds like the 'th' in 'think.'
## Grammar Rules for Using 13 in Arabic
The number 13 follows a unique grammatical pattern called inverse gender agreement (العدد المخالف للمعدود). This means the first part of the number contradicts the gender of the counted noun, while the second part agrees with it.
### Gender Agreement Rules
When counting **masculine nouns**, use the feminine form of three (ثلاثة) but the masculine form of ten (عشر). For example: ثلاثة عشر كتاباً (thalathata ashar kitaban) - thirteen books. The word كتاب (book) is masculine, so we use the seemingly contradictory feminine ثلاثة.
When counting **feminine nouns**, use the masculine form of three (ثلاث) but the feminine form of ten (عشرة). For example: ثلاث عشرة سيارةً (thalatha ashrata sayyaratan) - thirteen cars. The word سيارة (car) is feminine, so we use the masculine ثلاث.
### Case Endings and Noun Form
The counted noun always appears in the **singular form** (not plural) and takes the **accusative case** (المنصوب) with tanween fatah, appearing as a sound (-an ending). For example: ثلاثة عشر طالباً (thirteen male students) or ثلاث عشرة صفحةً (thirteen pages).
Both components of the number (ثلاثة/ثلاث and عشر/عشرة) are indeclinable (مبني على الفتح), meaning they maintain the same form regardless of their grammatical position in the sentence, whether subject, object, or in a prepositional phrase.
## Using 13 in Everyday Contexts
The number 13 appears frequently in daily Arabic communication. You might use it to express age: عمري ثلاثة عشر عاماً (my age is thirteen years). It's common in telling time, giving dates, discussing prices, or expressing quantities.
In formal contexts, such as official documents or news reports, precise number usage with correct gender agreement is essential. In colloquial spoken Arabic, some of these grammatical rules are relaxed, but understanding the formal structure helps in reading classical texts, news articles, and formal communications.
## Ordinal Form: Thirteenth
When expressing 'thirteenth' rather than 'thirteen,' Arabic uses ordinal numbers. The ordinal form is الثالث عشر (ath-thalith ashar) for masculine nouns and الثالثة عشرة (ath-thalithata ashrata) for feminine nouns. Both parts take the definite article ال and agree with the noun in gender and definiteness. For example: الفصل الثالث عشر (the thirteenth chapter).
## Cultural Context and Significance
Unlike in Western culture where 13 is often considered unlucky, Arabic and Islamic cultures have no such superstition attached to this number. Arabs use 13 naturally in all contexts without hesitation or negative associations. The number appears in Islamic texts and historical records without special significance, treated simply as a mathematical value.
Mastering the number 13 and its grammatical rules provides excellent practice for understanding Arabic's sophisticated number system, preparing learners for the broader patterns that govern Arabic numerals and their agreement with counted nouns.