Vowel Harmony Rules
Back/Front Harmony
Back Vowels
a, ı, o, u
Front Vowels
e, i, ö, ü
Rule: If the root word has back vowels, suffixes must use back vowels. If the root has front vowels, suffixes use front vowels.
Rounded/Unrounded Harmony
Rounded Vowels
o, u, ö, ü
Unrounded Vowels
a, ı, e, i
Rule: After rounded vowels, use "u/ü" for back/front. After unrounded vowels, use "ı/i" for back/front.
Examples
ev (house) + ler = evler
Front vowel → front suffix
kitap (book) + lar = kitaplar
Back vowel → back suffix
göz (eye) + ü = gözü
Rounded front → rounded front
kol (arm) + u = kolu
Rounded back → rounded back
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