When English puts two nouns together, as in bus stop, birthday or the door of the house, Turkish uses an isim tamlaması (noun compound). The first noun describes or owns the second, and the second noun, the head, usually carries a possessive suffix. Turkish distinguishes three types, and choosing the right one changes the meaning. This page focuses on the compounds themselves; for the endings involved, see the genitive case -(n)ın and possessive suffixes.
The three types at a glance
| Type | Structure | Example | Meaning |
|---|---|---|---|
| Definite (belirtili) | noun**-(n)In** + noun**-(s)I** | evin kapısı | the door of the house |
| Indefinite (belirtisiz) | noun + noun**-(s)I** | ev kapısı | a house door, front door |
| Material (takısız) | noun + noun | demir kapı | an iron door |
1. Definite compounds: “the X of the Y”
In a definite compound, the first noun (the owner) takes the genitive and the second (the thing owned) takes the 3rd-person possessive. Both suffixes follow four-way vowel harmony, and after a vowel they need a buffer letter: n for the genitive, s for the possessive.
- evin kapısı (the door of the house)
- Ali’nin arabası (Ali’s car)
- okulun müdürü (the principal of the school)
- komşunun kedisi (the neighbour’s cat)
- şirketin adresi (the company’s address)
The owner is a specific, known person or thing. With personal pronouns the same pattern gives benim arabam (my car) and onun evi (his house); the possessive page covers those forms.
2. Indefinite compounds: “Y X” as a type
In an indefinite compound the first noun stays in the nominative (bare) form and only the second noun takes -(s)I. The first noun tells you what kind of thing the second is. This is the most frequent compound type and the one behind countless everyday words.
| Compound | Literally | Meaning |
|---|---|---|
| Türk kahvesi | Turk coffee-its | Turkish coffee |
| otobüs durağı | bus stop-its | bus stop |
| doğum günü | birth day-its | birthday |
| telefon numarası | telephone number-its | phone number |
| kira sözleşmesi | rent contract-its | rental contract |
| oturma izni | residing permit-its | residence permit |
| ders kitabı | lesson book-its | textbook |
| çay bardağı | tea glass-its | tea glass |
| İstanbul Üniversitesi | Istanbul university-its | Istanbul University |
Two sound changes appear in this table. Durak and bardak soften k → ğ before the vowel suffix, and kitap softens p → b, following the consonant mutation rule. İzin (permission) drops its second vowel: izni.
Names of institutions, streets and places are almost always indefinite compounds: Kadıköy Belediyesi (Kadıköy Municipality), Taksim Meydanı (Taksim Square), Atatürk Caddesi (Atatürk Avenue). You will meet many on official forms; the residence permit vocabulary guide is full of them.
Definite or indefinite? Compare
- Kadının çantası (the woman’s bag: belongs to a particular woman) vs kadın çantası (a women’s bag: a type of bag)
- Evin anahtarı (the key of the house: that house) vs ev anahtarı (a house key)
- Türkiye’nin başkenti (the capital of Türkiye) is definite because Türkiye is one specific country.
3. Material compounds: no suffixes
When the first noun names what the second is made of, neither noun takes a suffix. These work much like adjective + noun phrases, and some grammars classify them as such.
- altın yüzük (gold ring)
- taş ev (stone house)
- tahta masa (wooden table)
- ipek gömlek (silk shirt)
- demir kapı (iron door)
Adding case endings to compounds
When a case ending follows the possessive -(s)I, a buffer n appears. This happens in both definite and indefinite compounds.
| Case | Türk kahvesi | okul müdürü |
|---|---|---|
| nominative | Türk kahvesi | okul müdürü |
| accusative | Türk kahvesini | okul müdürünü |
| dative | Türk kahvesine | okul müdürüne |
| locative | Türk kahvesinde | okul müdüründe |
| ablative | Türk kahvesinden | okul müdüründen |
| genitive | Türk kahvesinin | okul müdürünün |
- İki Türk kahvesini masaya getirdi. (He brought the two Turkish coffees to the table.)
- Okul müdürüne bir e-posta yazdım. (I wrote an email to the school principal.)
- Otobüs durağında bekliyorum. (I’m waiting at the bus stop.)
Plural compounds
The plural -lAr goes before the possessive suffix, and the possessive then takes its post-consonant form:
- otobüs durağı → otobüs durakları (bus stops)
- doğum günü → doğum günleri (birthdays)
- Türk kahvesi → Türk kahveleri (Turkish coffees)
The plural suffix page covers -lar/-ler in detail.
Adding a personal owner: “my birthday”
To say my birthday or our bus stop, replace the 3rd-person -(s)I with the personal possessive. Never stack two possessives.
- doğum günü → doğum günüm (my birthday). Doğum günün kutlu olsun! (Happy birthday!)
- Türkçe öğretmeni → Türkçe öğretmenim (my Turkish teacher)
- telefon numarası → telefon numaranız (your phone number): Telefon numaranızı alabilir miyim? (May I have your phone number?)
Chained compounds
Compounds can nest inside each other (zincirleme isim tamlaması). The rule is the same at each step: the head always takes the possessive, and the modifying part takes the genitive only if it is a specific owner. If it just names a type, it stays bare.
- okulun bahçe kapısı (the school’s garden gate)
- Türkçe kursu öğretmeni (the Turkish course teacher)
- apartmanın kapı zili (the building’s doorbell)
Measure phrases are not compounds
Bir bardak çay (a glass of tea) has no suffixes at all: a number, a container, then the contents. Compare çay bardağı (a tea glass, the empty glass itself).
- İki bardak çay lütfen. (Two glasses of tea, please.)
- Bir şişe su alabilir miyim? (Can I have a bottle of water?) vs su şişesi (a water bottle)
Compounds you will meet every day
Many words on bills, signs and forms in Türkiye are indefinite compounds. Learning them as whole units saves time.
| Compound | Meaning |
|---|---|
| ev sahibi | landlord; host |
| su faturası / elektrik faturası | water bill / electricity bill |
| banka hesabı | bank account |
| kimlik kartı | ID card |
| metro istasyonu | metro station |
| posta kodu | postcode |
| hastane randevusu | hospital appointment |
| bekleme salonu | waiting room |
- Ev sahibi kirayı artırmak istiyor. (The landlord wants to raise the rent.)
- Su faturasını internetten ödedim. (I paid the water bill online.)
- En yakın metro istasyonu nerede? (Where is the nearest metro station?)
Notice ev sahibi (landlord, a role) against evin sahibi (the owner of the house, a particular house).
Common mistakes
- Dropping the possessive. Türk kahve, okul müdür and otobüs durak are wrong. The head needs -(s)I.
- Forgetting the buffer n. Türk kahvesiyi is wrong; say Türk kahvesini.
- Using the genitive for a type. Kadının çantası means a specific woman’s bag; for “women’s bags” in a shop, use kadın çantaları.
- Stacking possessives. Türkçe öğretmenim (my Turkish teacher), not Türkçe öğretmenisim.
- Mixing up measures and compounds. Bir bardak çay = a glass of tea; çay bardağı = a tea glass.
Mini-exercise
Complete the compounds.
- araba + anahtar → ________ (car key)
- Ali + ev → ________ (Ali’s house)
- kira + sözleşme → ________ (rental contract)
- otobüs bileti (accusative) → ________ (the bus ticket, as object)
- doğum günü (with “your”, informal) → ________ (your birthday)
- altın + saat → ________ (gold watch)
- otobüs durağı (plural) → ________ (bus stops)
Answers: 1. araba anahtarı · 2. Ali’nin evi · 3. kira sözleşmesi · 4. otobüs biletini · 5. doğum günün · 6. altın saat · 7. otobüs durakları
Next steps
Revisit how the genitive builds definite compounds on the genitive case page, then break down long compounds such as otobüs duraklarında with the suffix deconstructor.
