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Due to, per, regarding: 〜につき

N + につき

N + につき: due to (signs, notices), per (一人につき), regarding (本件につき). Very written, administrative register; in speech, you say から, のため, あたり or について.

In short

〜につき is a fixed, very written form with three uses: reason, on signs and notices (工事中につき: “due to works”); distribution, “per” (一人につき千円: 1,000 yen per person); subject, in formal documents (本件につき: “regarding this matter”). Administrative tone: posters, notices, regulations, official letters.

  • 工事中につき、駐車場は使用できません。こうじちゅうにつき、ちゅうしゃじょうはしようできません。Car park closed due to works.
  • 参加費は一人につき千円です。さんかひはひとりにつきせんえんです。The participation fee is 1,000 yen per person.
  • 本日は定休日につき、休業いたします。ほんじつはていきゅうびにつき、きゅうぎょういたします。Closed today for our regular day off.
  • 本件につき、ご意見をお聞かせください。ほんけんにつき、ごいけんをおきかせください。Please let us have your views regarding this matter.

The basics

につき comes from the verb つく (“to be attached to”). It's a fixed, very written form, met mostly on signs and in documents. It has three uses: reason (工事中につき), distribution (一人につき) and subject (本件につき).

The first is the one you'll see everywhere in Japan: on a shop door, at a car park entrance, in a station corridor. The message is short, impersonal, almost telegraphic — much like English “Closed due to…”.

The sentence, piece by piece
工事中under works
につきdue to (written)
駐車場はthe car park (topic)
使用できませんcannot be used

Car park closed due to works.

  • noun
  • grammatical form
  • verb
  • 清掃中につき、立ち入り禁止。せいそうちゅうにつき、たちいりきんし。Cleaning in progress: no entry.
  • 売り切れにつき、本日の営業は終了しました。うりきれにつき、ほんじつのえいぎょうはしゅうりょうしました。Sold out: we've closed for today.

Three uses

For a reason, the noun often ends in 〜中 (工事中, 準備中, 会議中) or names a state (定休日, 売り切れ). For distribution, you find a number and a unit (一人, 一時間, 一枚). For a subject, you find words from official documents: 本件, この点, 上記の件.

UseExampleTranslation
reason (signs, notices)改装中につき休業closed for refurbishment
distribution (“per”)一人につき千円1,000 yen per person
subject (formal documents)本件につきregarding this matter
  • 入場券は、お一人様につき一枚までです。にゅうじょうけんは、おひとりさまにつきいちまいまでです。Maximum one admission ticket per person.
  • 上記の件につき、ご確認をお願いいたします。じょうきのけんにつき、ごかくにんをおねがいいたします。Please check the matter mentioned above.

につき, のため, あたり

のため (N4) also gives a reason, in writing and in speech, and it can follow a verb (雨が降ったため). につき nearly always attaches to a noun, and its signboard tone makes it stiff in conversation.

For distribution, あたり (一人あたり) is the everyday equivalent, common in statistics and calculations. につき sounds more like a posted price or rule.

ExpressionUseRegister
につきreason, “per”, subjectvery written, official notices
のためreasonneutral, written and spoken
あたり“per” (average, calculation)neutral
  • 大雪のため、電車が遅れています。おおゆきのため、でんしゃがおくれています。Trains are delayed due to heavy snow.
  • 一人あたりの食費は、月に三万円ぐらいだ。ひとりあたりのしょくひは、つきにさんまんえんぐらいだ。Food costs are about 30,000 yen per person per month.

Common mistakes

  • Using it in ordinary conversation: “今日は雨につき、出かけない” sounds like an official sign. In speech, you say 雨だから.
  • Taking it for a plain “about”: outside a few written formulas (本件につき), につき doesn't introduce a topic of conversation; that's the job of について.
  • Confusing it with the noun 月 (つき, moon, month): 一人につき has nothing to do with the moon.

7 exercises on this point

Particles to choose, sentences to put back in order, translations: marked straight away, then reviewed at the right time. This JLPT N2 point is on the Meikō Line (The economy and trade) of the Nagoya lines.