につき

particle

regarding; due to; per

1. regarding; concerning

Used in formal writing and notices to indicate the topic or subject matter. Equivalent to 'regarding' or 'concerning' in English.

この件(けん)につきご連絡(れんらく)します。

I am contacting you regarding this matter.

詳細(しょうさい)につきましては、下記(かき)をご覧(らん)ください。

For details, please see below.

今後(こんご)のスケジュールにつき、改(あらた)めてご案内(あんない)いたします。

We will inform you again regarding the future schedule.

2. due to; because of

Indicates a reason or cause in formal contexts, often seen in signs and official announcements.

工事中(こうじちゅう)につき通行止(つうこうど)め。

Road closed due to construction.

本日(ほんじつ)休業(きゅうぎょう)につき、ご迷惑(めいわく)をおかけします。

We apologize for the inconvenience due to being closed today.

台風(たいふう)接近(せっきん)につき、本日(ほんじつ)の営業(えいぎょう)は中止(ちゅうし)とさせていただきます。

Due to an approaching typhoon, we will be closed for business today.

3. per; for each

Indicates a rate or unit, equivalent to 'per' in English.

一人(ひとり)につき一枚(いちまい)。

One sheet per person.

一回(いっかい)につき三百円(さんびゃくえん)かかる。

It costs 300 yen per time.

この薬(くすり)は一日(いちにち)につき三回(さんかい)、食後(しょくご)に服用(ふくよう)してください。

Please take this medicine three times per day, after meals.

USAGE:
につき is a formal particle used primarily in written Japanese — signs, notices, business correspondence, and official documents. It is rarely used in casual conversation.

FORMALITY:
Highly formal. In everyday speech, the same meanings are expressed with について (regarding), ので or から (because of), and ごとに (per each).

PATTERNS:

[noun] + につき (regarding/due to)
[quantity word] + につき (per)

COMMON COLLOCATIONS:

工事中(こうじちゅう)につき (due to construction)
都合(つごう)につき (due to circumstances)
一人(ひとり)につき (per person)
この件(けん)につき (regarding this matter)

general

Added 2026.3.17 9:13

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