To say “Salma is an engineer,” Modern Standard Arabic normally uses a definite subject followed directly by an indefinite predicate: سلمى مهندسة. There is no present-tense word for English is, and there is no word for a. The profession classifies Salma; it does not identify her as one previously known engineer.
The same structure covers nationality, religion, group membership, and many other identities. Adding الـ to the predicate is possible, but it changes the task from classification—“a doctor”—to identification—“the doctor.”
The basic identity sentence
| Definite subject | Indefinite predicate | Meaning |
|---|---|---|
| سَلْمَى Salmā | مُهَنْدِسَة muhandisa(h) | Salma is an engineer |
| أَخِي ʾakhī | طَبِيب ṭabīb | my brother is a doctor |
| هُمْ hum | مُعَلِّمُون muʿallimūn | they are teachers |
| هُنَّ hunna | بَاحِثَات bāḥithāt | they are female researchers |
سلمى مهندسة وتعمل في شركة طاقة
Salmā muhandisatun wa-taʿmalu fī sharikati ṭāqa(h)
Salma is an engineer and works for an energy company.
أخي طبيب في مستشفى جامعي
ʾakhī ṭabībun fī mustashfan jāmiʿiyy
My brother is a doctor at a university hospital.
The subjects are already definite: سلمى is a proper name, and أخي is definite through the possessive suffix ـي. The predicates مهندسة and طبيب are indefinite because they assign the subjects to occupational categories.
Gender and number agreement
Profession and nationality predicates agree with the subject's gender and number. Many human profession nouns form a feminine in ة, while plural forms may be sound or broken and must be learned.
ليلى طبيبة وماهر مهندس
Laylā ṭabībatun wa-Māhirun muhandis
Layla is a doctor, and Maher is an engineer.
هم معلمون في مدرسة ثانوية
hum muʿallimūna fī madrasatin thānawiyya(h)
They are teachers at a secondary school.
هن باحثات في علم المناخ
hunna bāḥithātun fī ʿilmi l-munākh
They are female researchers in climate science.
معلمون is nominative masculine plural because it is the predicate of هم. باحثات is nominative feminine plural because the referents are human women. Sentence-final pause removes short endings but does not change agreement.
Nationality adjectives behave as nominal predicates in the same way.
أنا أردني وأعيش في عمان
ʾanā ʾurduniyyun wa-ʾaʿīshu fī ʿAmmān
I am Jordanian and live in Amman. — male speaker
هي مغربية وتقيم في الرباط
hiya maghribiyyatun wa-tuqīmu fī r-ribāṭ
She is Moroccan and lives in Rabat.
No article is needed on أردني or مغربية. They classify the subject rather than point to a previously identified nationality-holder.
Adding detail does not automatically add definiteness
An adjective can specify the profession while the whole predicate remains indefinite. Both noun and adjective remain bare and share case.
هي طبيبة ماهرة في جراحة القلب
hiya ṭabībatun māhiratun fī jirāḥati l-qalb
She is a skilled doctor in cardiac surgery.
هو مترجم قانوني ذو خبرة
huwa mutarjimun qānūniyyun dhū khibra(h)
He is an experienced legal translator.
English a skilled doctor again has no overt equivalent of a. Arabic shows indefiniteness through the absence of الـ and, in fully inflected connected delivery, through tanwīn.
Prepositional phrases and relative clauses can add further specification without necessarily making the profession definite: مهندس يعمل في الطاقة means “an engineer who works in energy.” Definiteness is the result of the whole phrase, not simply its length.
“A doctor” versus “the doctor”
A definite predicate identifies the subject as a particular, contextually unique person. Compare classification with identification:
هو طبيب مناوب
huwa ṭabībun munāwib
He is a doctor on duty. — one member of that category
هو الطبيب المناوب
huwa ṭ-ṭabību l-munāwib
He is the doctor on duty. — the identifiable person filling that role
Because الطبيب المناوب is one definite noun phrase, the adjective repeats the article. Omitting the second article changes مناوب into a predicate and can create a different sentence boundary.
When two fully definite expressions are equated, Arabic often uses a separation pronoun to make the identification clear.
سارة هي المهندسة التي صممت الجسر
Sāratu hiya l-muhandisatu llatī ṣammamati l-jisr
Sara is the engineer who designed the bridge.
Here هي is not an ordinary present-tense copula. It separates the definite subject سارة from the definite identifying predicate المهندسة التي صممت الجسر.
Iḍāfa can keep or change the classification
A profession may be the head of an iḍāfa. The final dependent determines whether the whole predicate is indefinite or definite.
هو مدير مدرسة في القرية
huwa mudīru madrasatin fī l-qarya(h)
He is a school principal in the village.
هو مدير المدرسة في القرية
huwa mudīru l-madrasati fī l-qarya(h)
He is the principal of the school in the village.
The construct head مدير cannot take الـ or tanwīn. Indefinite مدرسة gives the first phrase the category reading “a school principal”; definite المدرسة identifies one school's principal.
Prior mention creates an identifiable professional
تحدثت مع طبيبة جديدة. الطبيبة تعمل في قسم الطوارئ
taḥaddathtu maʿa ṭabībatin jadīda(h). aṭ-ṭabībatu taʿmalu fī qismi ṭ-ṭawāriʾ
I spoke with a new doctor. The doctor works in the emergency department.
The first profession phrase introduces an unspecified person. The second uses الـ because that doctor is now discourse-known. This is different from the bare predicate in هي طبيبة.
A profession can also serve as a generic class subject: الطبيب يعالج المرضى “doctors/the doctor as a class treat patients.” That generic article use is explained on Generic and Class Reference.
Common Mistakes
Importing English a as واحد
❌ سلمى واحدة مهندسة
Incorrect — identity predicates need no indefinite article or numeral.
✅ سلمى مهندسة
Salmā muhandisa(h)
Salma is an engineer.
Making a classification predicate definite
❌ أخي الطبيب
Incorrect for the intended complete sentence ‘my brother is a doctor’; this reads as the phrase ‘my brother, the doctor.’
✅ أخي طبيب
ʾakhī ṭabīb
My brother is a doctor.
Mixing definiteness inside an indefinite predicate phrase
❌ هي طبيبة الماهرة
Incorrect — an attributive adjective must share the profession noun's indefiniteness.
✅ هي طبيبة ماهرة
hiya ṭabībatun māhira(h)
She is a skilled doctor.
Omitting the article from an identified role's adjective
❌ هو الطبيب مناوب
Incorrect for ‘he is the doctor on duty’ — the adjective belongs inside a definite phrase.
✅ هو الطبيب المناوب
huwa ṭ-ṭabību l-munāwib
He is the doctor on duty.
Putting الـ on the profession at the head of an iḍāfa
❌ هو المدير المدرسة
Incorrect — مدير is the construct head and cannot take the article.
✅ هو مدير المدرسة
huwa mudīru l-madrasa(h)
He is the school's principal.
Key Takeaways
- A definite subject plus a bare indefinite profession or nationality is the normal identity sentence.
- Arabic uses no present-tense copula and no indefinite article in سلمى مهندسة.
- Adjectives inside an indefinite profession phrase remain indefinite; adjectives inside an identified definite role repeat الـ.
- A definite predicate means “the identifiable X,” not merely “an X.”
- In an occupational iḍāfa, the final dependent determines whether the whole classification is indefinite or definite.
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Start learning Arabic →Related Topics
- Generic and Class ReferenceA2 — Use definite singulars and plurals for Arabic species and classes, and distinguish them from indefinite individual instances.
- Abstract Nouns with and without الـA2 — Choose definite or indefinite Arabic abstract nouns by distinguishing generic concepts, discourse-known meanings, qualified instances, and fixed collocations.
- The Definite Article الـA1 — Use the attached Arabic definite article, pronounce sun-letter assimilation, and mark definiteness across a whole noun phrase.