だけ means only or just. It is a JLPT N5 particle that draws a fence around one thing — one item, one person, one amount, one action — and says “this, and nothing beyond it.”
You will use it the first time you order in Japan (水だけください — just water, please) and the first time a shop clerk asks if you need help (見るだけです — I’m just looking). It is one of the most useful words at N5, and it has one close rival, しか, that you need to keep apart from it.
だけ sets a limit and stays neutral. It works with a positive verb, and it does not complain that the amount is small.
What does だけ mean?
だけ limits whatever comes directly before it. Everything outside that limit is excluded.
- 水だけ — only water (no food, no other drinks)
- 私だけ — only me (nobody else)
- 一つだけ — just one (not two)
- 見るだけ — only look (not buy)
In English you will translate it as “only,” “just,” or sometimes “nothing but.” The choice depends on what sounds natural: “only he knows” but “just one question.” The Japanese does not change.
Notice that だけ always sits after the word it limits. English “only” can float around the sentence (“I only drank water” / “I drank only water”), but Japanese だけ is glued to its target. If you move だけ, you change what is being limited.
How to form だけ
だけ attaches directly to the word you want to limit. At N5 you mostly need three patterns:
What happens to the particles
This is the part textbooks often skip:
- が and を usually disappear or move after だけ. Say 水だけください, not 水をだけ. If you keep が, put it after: 私だけが知っています.
- に, で, と, から normally stay in front of だけ: 日曜日にだけ, 友達とだけ, ここでだけ. With time words like 日曜日 you can also drop に and just say 日曜日だけ.
With numbers and counters, だけ follows the whole counter: 一人だけ, 三日だけ, 千円だけ.
When is だけ used?
You will meet だけ in four everyday situations:
- Ordering and shopping. 水だけください。/ これだけです (that’s all — at the register).
- Limiting a group. 田中さんだけ来ませんでした — only Tanaka-san didn’t come.
- Softening a request. ちょっとだけ, 一つだけ, 少しだけ make a request feel small and easy to accept: 一つだけ聞いてもいいですか — may I ask just one thing?
- Saying you did nothing more. 見るだけです, 聞いただけです — I only listened (I didn’t say anything).
だけ is neutral. It works in casual speech with friends, in polite です/ます sentences, and in writing. You never need to swap it for something more formal at N5.
だけ example sentences
水だけください。
Just water, please.
すみません、見るだけです。
Sorry, I'm just looking.
このことは私だけが知っています。
I'm the only one who knows about this.
一つだけ質問があります。
I have just one question.
昨日は少しだけ勉強しました。
I only studied a little yesterday.
この店は日曜日だけ休みです。
This shop is closed only on Sundays.
ちょっとだけ待ってください。
Please wait just a moment.
Look at where だけ sits in each sentence: always right after the thing being limited, and が/を either gone or placed after it.
Nuance of だけ
だけ is a plain, factual limit. It tells the listener where the boundary is, and that is all. 千円だけあります simply reports that you have 1,000 yen — maybe that’s enough, maybe it isn’t. The sentence doesn’t say.
That neutrality is why だけ works so well in requests. ちょっとだけ and 一つだけ shrink what you are asking for, so the other person hears “this won’t take much.” Japanese speakers use this constantly: ちょっとだけ手伝ってくれる? (could you help me for just a sec?).
Because だけ can also combine with positive verbs, it can sound quite positive: 君だけが好きだ — you’re the only one I love. Compare that with しか below, which always carries a feeling of “not more than this.”
Tip: これだけ can mean "only this" or "this much," depending on context. これだけですか means "Is that all?" at a shop counter, but これだけ勉強した means "I studied this much" — often with pride.
だけ vs しか
This is the pair every N5 learner mixes up. Both translate as “only,” but they are built differently and feel different.
The rule of thumb: if the verb is positive, you need だけ. If you want to complain or stress that something is too little, use しか with a negative verb. You can also combine them in a sentence like 水だけしか飲みませんでした (I drank nothing but water) — this is extra-emphatic and you will hear it, but you don’t need to produce it at N5.
Common mistakes with だけ
しか cannot take a positive verb. Keep the positive verb and switch to だけ, or keep しか and make the verb negative.
を drops out before だけ. The same goes for が in most sentences — and if you keep it, it goes after: 私だけが.
だけ + negative verb means "the one thing I don't eat is vegetables." Learners who copy the しか pattern with だけ end up saying the opposite of what they mean.
Is だけ on the JLPT?
Yes. だけ is core N5 grammar and appears in the particle-choice questions of the grammar section as well as in listening dialogues set in shops and restaurants.
On the test you should be able to:
- Pick だけ over しか when the verb is positive, and しか over だけ when the verb is negative and the meaning is "only"
- Recognize だけ after counters (一つだけ, 一人だけ) and time words (日曜日だけ)
- Understand 見るだけです and これだけです in shop conversations
A typical question gives you 「りんごを一つ( )買いました。」 with choices like だけ / しか / も. The positive 買いました rules out しか immediately — check the verb ending before you look at the meaning.
Practice questions for だけ
Show answer
コーヒーだけください。 — Just coffee, please.
Show answer
一話目だけ見ました。 — I only watched the first episode.
Show answer
五百円だけあります。 — I have only 500 yen.
Show answer
弟だけがパーティーに来ました。 — Only my younger brother came to the party.
Learning path for だけ
Related grammar to review next
- も — the opposite move: だけ removes everything else, も adds one more item. Both sit in the same particle slot.
- や — lists items as examples; contrast 水やお茶 (water, tea, and so on) with 水だけ (water, nothing else).
- だけで — the N4 step up: 見るだけで分かる, “you can tell just by looking.”
- ばかり — another “only” word, but it means something happens repeatedly or excessively, usually with a critical tone.
- しかない — grows out of しか + negative and means “there’s no choice but to.”
Learn だけ with Hane
Hane drills だけ and しか side by side in short sentence exercises, so the positive-verb rule becomes automatic. Start practicing with Hane.
FAQ about だけ
What does だけ (dake) mean in Japanese?
だけ (dake) means “only or just”. It is JLPT N5 grammar. だけ limits whatever comes directly before it. Everything outside that limit is excluded.
How do you form だけ (dake)?
だけ attaches directly to the word you want to limit.
What is the difference between だけ and しか?
だけ: neutral limit. しか: "nothing but" — needs a negative.
What is an example sentence with だけ (dake)?
水だけください。 — Just water, please.