English uses every and all almost interchangeably — "every day" and "all day" feel like cousins. Turkish keeps them strictly apart, and it does so with a grammatical signal you can actually see: the number of the noun. her forces a singular noun; bütün and tüm want a plural (or a whole). Get the number right and you have got the word right.
The one-sentence test
Ask: Am I distributing over individual items one by one (every), or am I taking a group / a whole as a single block (all)?
| Word | Noun it takes | Meaning | Model phrase |
|---|---|---|---|
| her | singular | every (one by one) | her gün — every day |
| bütün / tüm | plural, or singular whole | all the…, the whole… | bütün gün — the whole day |
| hep / hepsi | — | always / all of them | Hepsi gitti — they all left |
her is a loanword from Persian, while bütün and tüm are both native Turkic; bütün also means "whole, entire" as an ordinary adjective. bütün and tüm are interchangeable in the "all" meaning — bütün öğrenciler and tüm öğrenciler are equally correct, with tüm sounding slightly more formal.
her + SINGULAR = every
This is the rule to tattoo on your memory: her is always followed by a singular noun, no matter how many things you mean. "Every student," "every house," "every time" — the noun stays singular because her picks them out one at a time.
Her sabah yedide kalkıyorum.
I get up at seven every morning.
Her öğrenci bir kitap aldı.
Every student took a book.
Bu yolu her gün yürüyorum.
I walk this road every day.
The logic is distributive: her öğrenci means you are scanning the students one by one — "this one, and this one, and this one" — so each instance is a single student. That is why a plural would be a contradiction: you cannot distribute "one by one" over an already-bundled plural. This is exactly why *her günler is impossible.
When her is followed by a verb-derived expression of time, it still keeps the singular: her gittiğimde ("every time I go"), her gördüğümde ("every time I see"). The pattern is rock-solid.
Her gördüğümde bana yeni bir hikâye anlatıyor.
Every time I see him, he tells me a new story.
bütün / tüm + PLURAL = all (the)
When you mean a whole group taken together, use bütün or tüm with a plural noun. The plural -ler/-lar ending is what makes the group visible (see nouns/plural-lar).
Bütün öğrenciler sınava girdi.
All the students took the exam.
Tüm arkadaşlarımı davet ettim.
I invited all my friends.
Bütün gece uyuyamadım.
I couldn't sleep all night.
Compare the first sentence here with Her öğrenci bir kitap aldı above. Her öğrenci (singular) views the students individually; bütün öğrenciler (plural) views them as one body. English blurs this — "all the students" and "every student" can both translate the same scene — but Turkish forces you to pick a perspective, and the noun's number is the giveaway.
bütün gün vs bütün günler — singular for a whole, plural for all
Here is the elegant twist. bütün (and tüm) can also take a singular noun — but then the meaning shifts from "all the X's" to "the whole X," one continuous block.
Bütün gün evde kaldım.
I stayed home the whole day.
Bütün günler birbirine benziyor.
All the days resemble one another.
- bütün gün (singular) = the whole day, a single unbroken stretch.
- bütün günler (plural) = all the days, a set of separate days.
So bütün flips meaning with the noun's number: singular → "the entire one thing," plural → "all the several things." This is a genuinely useful pair to keep side by side, because the English translations ("the whole day" vs "all the days") sound unrelated but the Turkish differs only in -ler.
Bütün yaz çalıştım.
I worked the whole summer.
Bütün yazları köyde geçiririz.
We spend all our summers in the village.
hep and hepsi — the "all" pronouns
her, bütün, and tüm sit in front of a noun. But when you want "all of them" standing alone, or "always," you switch to hep / hepsi, which are related but used differently (more in pronouns/indefinite-pronouns).
- hepsi = "all of it / all of them" as a standalone pronoun.
- hep = "always, continually" as an adverb.
Çikolataların hepsini yedim.
I ate all of the chocolates.
O hep aynı şeyi söylüyor.
He always says the same thing.
Notice you would not say *bütününü yedim for "I ate all of them" — for a standalone "all of them" pronoun, Turkish reaches for hepsi, not bütün. bütün/tüm need a noun to lean on.
A side-by-side summary
| English | Turkish | Why |
|---|---|---|
| every day | her gün | her + singular (one by one) |
| the whole day | bütün gün / tüm gün | bütün + singular (one block) |
| all the days | bütün günler / tüm günler | bütün + plural (the set) |
| every student | her öğrenci | her + singular |
| all the students | bütün öğrenciler | bütün + plural |
| all of them | hepsi | standalone pronoun |
Common mistakes
❌ Her günler okula gidiyorum.
Incorrect — her must take a SINGULAR noun
✅ Her gün okula gidiyorum.
I go to school every day.
❌ Bütün öğrenci sınava girdi.
Incorrect — for 'all the students' bütün needs a PLURAL noun
✅ Bütün öğrenciler sınava girdi.
All the students took the exam.
❌ Her öğrenciler bir kitap aldı.
Incorrect — her cannot combine with a plural; pick her + singular or bütün + plural
✅ Her öğrenci bir kitap aldı.
Every student took a book.
❌ Çikolataların bütününü yedim.
Incorrect — for a standalone 'all of them' use hepsi, not bütün
✅ Çikolataların hepsini yedim.
I ate all of the chocolates.
The recurring error is treating her like English "every," which happily precedes either number ("everyone" but also loosely "all the people"). In Turkish, her locks the noun to singular — no exceptions.
Key takeaways
- her = "every," and it always takes a singular noun: her gün, her öğrenci. A plural after her is a hard error.
- bütün / tüm = "all / the whole." With a plural noun they mean "all the X's" (bütün günler); with a singular noun they mean "the whole X" (bütün gün). tüm is slightly more formal but interchangeable.
- The noun's number is the visible signal of which meaning you intend — singular for distributing one-by-one or for a single whole, plural for a bundled group.
- For a standalone "all of them," use the pronoun hepsi; for "always," the adverb hep. Neither bütün nor tüm stands alone without a noun.
Now practice Turkish
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Start learning Turkish→Related Topics
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