At a glance
Noun をもって is a formal expression. With a means, it means "with" or "by means of". With a time, it marks the point "as of" which something ends or takes effect. It is used in formal writing, speeches and official announcements.
Noun (means / time) + をもって + formal action or ending
本日をもって、受付を終了いたします。 We will stop accepting applications as of today.
How to form it
をもって attaches directly to a noun. It does not attach to verbs or adjectives.
| Use | Attaches to | Example | Register |
|---|---|---|---|
| Means, method | Noun (often abstract: 書面, 誠意) | 書面をもって連絡します。 | Formal, written |
| Time point (end or start of effect) | Time noun (本日, 3月31日) | 本日をもって閉店します。 | Formal, written |
| Closing a meeting or event | これ, 以上 | これをもって会議を終了します。 | Formal, spoken in ceremonies |
| More polite form | Noun | 以上をもちまして、終了いたします。 | Very polite announcements |