The little word de / da is one of the most useful items in Turkish and one of the most misspelled — even by native speakers. It means "too / also / and / even," it is written as a separate word, and it is the single most reliable way to tell a learner who understands Turkish spelling from one who doesn't. The whole difficulty comes from a look-alike: the locative case ending -DA ("at / in / on"), which is attached and follows different rules. This page is about the free, additive de / da.
What additive de/da does
Place de / da right after the element you want to add to the picture, and it means "that one too." The word it follows is the thing being added.
Ben de geldim.
I came too. (I, in addition to others)
Sen de gel, seni özledik.
You come too, we've missed you.
O da biliyor, ona da söyledim.
He knows too; I told him as well.
Where de / da sits changes the meaning, because it scopes over whatever immediately precedes it. Compare:
Bunu da al, lazım olur.
Take this one too (in addition to the others), it'll come in handy.
Bu kitabı ben de okudum.
I too have read this book (I, like you).
In the first, da adds "this one" to a set of things; in the second, de adds "I" to a set of people. The word it leans on is the word it adds.
The spelling rule: always separate, never hardened
Two facts make additive de / da behave unlike a suffix:
- It is written as a separate word. It never attaches to the preceding word with no space, and it is never joined by an apostrophe. Ben de = "me too," two words.
- It only ever appears as de or da — never te or ta. Turkish has a consonant-hardening rule that turns suffix-initial d into t after voiceless consonants (this is why the locative is -DA, surfacing as -ta/-te in kitap-ta). The additive de / da is exempt: because it's an independent word, hardening never touches it. So after a voiceless consonant you still write de / da, not te / ta.
Ahmet de geldi, Mehmet de.
Ahmet came too, and Mehmet as well.
Kitap da masada, defter de.
The book is on the table too, and so is the notebook.
Note Ahmet de and kitap da: even though Ahmet and kitap end in the voiceless t and p, the additive word stays de / da. If it ever hardened to te / ta, you'd know you were looking at the locative ending instead.
The only harmony the additive word obeys is two-way vowel harmony: de after front vowels (e, i, ö, ü), da after back vowels (a, ı, o, u). That's the same A-type harmony as the locative, which is exactly why the two are so easy to confuse.
additive de/da vs the locative -DA
Here is the contrast that the whole topic turns on. The locative ending -DA means "at / in / on," attaches to its noun, hardens to -ta / -te after voiceless consonants, and cannot be removed. The additive de / da means "too / also," stands as its own word, never hardens, and can be removed. You can read the locative in full on The Locative -DA: At / In / On.
| additive de / da | locative -DA | |
|---|---|---|
| Meaning | too / also / and / even | at / in / on |
| Written | separate word | attached suffix |
| Hardening | never (always de/da) | yes (kitapta, evde, ağaçta) |
| Removable? | yes (loses "too") | no (breaks the sentence) |
The most instructive case is when both show up in one phrase. In Evde de var, the first -de is the attached locative ("at home") and the separate de is the additive ("too"):
Evde de var, sadece dükkânda değil.
There's some at home too, not only at the shop.
Markette de yoktu, eczanede de bulamadım.
It wasn't at the market either, and I couldn't find it at the pharmacy either.
Pull those apart: ev-de (locative, "at home"), then de (additive, "too"). One is glued on; the next is a free word. Spelling them both as "evde de" — joined locative, separate additive — is the test of whether you've really understood.
"even" and emphatic de/da
Beyond "too / also," de / da can mean "even," and after an exclamatory adjective it adds an emphatic "and … too!"
Çok da güzel olmuş, ellerine sağlık!
It's turned out really nice too — well done!
O kadar yorgundum ki çayımı içmeden de uyumuşum.
I was so tired that I fell asleep even without drinking my tea.
Repeated de … de around two items also gives a "both … and" listing flavour, close to the hem … hem of the correlatives: Ali de Veli de geldi ("both Ali and Veli came").
Common mistakes
❌ Bende geldim.
Incorrect — this reads as 'in/on me'; the additive 'de' must be a separate word.
✅ Ben de geldim.
I came too.
Attaching the additive turns it into something else entirely: bende is the locative "on me / I have," not "me too." The space is not optional.
❌ Ahmet te geldi.
Incorrect — the additive never hardens to te/ta.
✅ Ahmet de geldi.
Ahmet came too.
Even after the voiceless t of Ahmet, the additive stays de. Hardening to te is a sure sign you've mistaken it for the locative.
❌ Kitap te masada da, defter de.
Incorrect — additive should never be 'te', and word order/scope is garbled.
✅ Kitap da masada, defter de.
The book is on the table too, and so is the notebook.
❌ Ev de de yemek var.
Incorrect — the locative must be attached: 'evde', then separate 'de'.
✅ Evde de yemek var.
There's food at home too.
Here the trap runs the other way: the locative got detached. "At home" is evde (joined); only the additive "too" stands free. Getting both spacings right in one phrase — evde then de — is the whole skill.
Key takeaways
- Additive de / da = "too / also / and / even," always written as a separate word.
- It obeys two-way vowel harmony (de / da) but never hardens to te / ta.
- The attached locative -DA ("at/in/on") does harden (kitapta, ağaçta) and cannot be removed — that's how you tell them apart.
- In Evde de var, the first -de is the locative and the second de is the additive.
- Test: removable → separate additive; structural → attached locative.
Now practice Turkish
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Start learning Turkish→Related Topics
- The Locative -DA: At / In / OnA1 — The locative case -DA marks static location (at, in, on) and powers the var/yok possession construction; unlike English at/in, it can never express motion toward a place.
- Topic and FocusB1 — Turkish marks what a sentence is about (topic, at the front) and what is new or contrastive (focus, before the verb) by position plus particles like de/da and ise — where English uses intonation and clefts.
- de/da and ki: Separate or Attached?A2 — Turkey's most argued-about spelling rule — when 'de/da' means 'too' and stands alone, when '-DA' means 'in/at' and attaches, and the one-second removal test that settles every case.
- ki and -ki: Three Different ItemsB2 — Telling apart the three ki's — the separate conjunction ki, the attached non-harmonizing suffix -ki (evdeki, benimki), and the temporal -ki (dünkü).