Grammar term · I'rab · The signs
Secondary marker (waw/alif/ya/nun)
'alama far'iyya
عَلَامَة فَرْعِيَّة
I'rabThe signsadvanced term
In one line
A secondary marker (عَلَامَة فَرْعِيَّة) is a letter — و، ا، ي or ن — or an elision, standing in for the base case-vowels.
Classical definition
العَلَامَاتُ الفَرْعِيَّةُ مَا نَابَ عَنِ الحَرَكَاتِ الأَصْلِيَّةِ مِنْ حُرُوفٍ كَالوَاوِ وَالأَلِفِ وَاليَاءِ وَالنُّونِ، أَوْ حَرَكَاتٍ نَائِبَةٍ، أَوْ مِنْ حَذْفٍ.
“The secondary markers are what deputise for the base vowels: letters such as waw, alif, ya' and nun, or an elision.”
Key words in the Arabic
نَابَ عَنْdeputised for, stood in for
الْحَرَكَات الْأَصْلِيَّةthe base vowels: damma, fatha, kasra
Understand it
Five families decline with secondary markers — letters, substitute vowels or elision — instead of the base vowels: the dual (ـانِ / ـيْنِ), the sound masculine plural (ـونَ / ـينَ), the five nouns (أَبُوكَ، أَخُوكَ…), the five verbs (nun kept or dropped), and the diptotes (fatha standing in for kasra). Meet مُسْلِمُونَ and the و is its damma; meet أَبِيكَ and the ي is its kasra.
How to spot it
Recognition test
If the ending that changes is a letter rather than a vowel — و to ي, nun appearing and vanishing — you are watching secondary markers.
In the Qur'an
إِذْ قَالُوا۟ لَيُوسُفُ وَأَخُوهُ أَحَبُّ إِلَىٰٓ أَبِينَا مِنَّا وَنَحْنُ عُصْبَةٌ إِنَّ أَبَانَا لَفِى ضَلَٰلٍ مُّبِينٍ
Yusuf 12:8 — “They said: "Truly Joseph and his brother are loved more by our father than we: But we are a goodly body! really our father is obviously wandering (in his mind)!”
وَأَخُوهُ shows its rafa with a waw and أَبِينَا shows its jarr with a ya — letters doing the work a vowel usually does. That is a secondary marker.
Study this ayah word by word →Related terms
Common questions
Why do some words show their case with a letter instead of a vowel?
Because their form cannot carry the vowel cleanly. The dual, the sound plurals, the five nouns and the five verbs use a letter — or the loss of one — instead. It is a substitute marker, not a different case.
Next in the guideعَلَامَة مُقَدَّرَةEstimated (muqaddar) marker →Updated