【JLPT N1 Grammar Point 8】
This is one of those expressions that immediately gives your Japanese a polished, professional tone. If you’re reading business notices, formal announcements, or attending ceremonies in Japan, you’ll likely see this structure:
🌟 ～をもって
Main Meanings:
- As of (a specific time/date)
- By means of / Using (a method, means, or standard)
🔧 Grammar Structure
Noun + をもって
▶ The noun must be something abstract or formal, like a date, method, or event.
✅ Meaning 1: “As of / Starting from (Time)”
Used to indicate a specific point in time when something starts or ends.
📝 Example Sentences
1. 本日をもって、営業を終了いたします。
(As of today, we are ending business operations.)
▶ A classic phrase in business closure announcements.
2. 3月31日をもって、退職いたしました。
(I retired as of March 31.)
▶ Used in résumés, formal speeches, or farewells.
3. 今回をもって、このシリーズは最終回となります。
(This will be the final installment in this series.)
▶ Common in academic or serialized content.
✅ Meaning 2: “By Means Of / Using”
This usage shows the method or standard used to perform an action.
4. 厳正な審査をもって、合格者が決定されました。
(The successful candidates were chosen through a rigorous screening process.)
▶ Used in official event or selection announcements.
5. 最新の技術をもってしても、解明は困難だ。
(Even with the latest technology, it’s hard to explain.)
▶ Often used in technical or scientific writing.
6. 誠意をもって対応させていただきます。
(We will handle it with sincerity.)
▶ Business-style politeness at its finest.
🧠 Related/Similar Grammar
| Grammar | Usage | Notes |
|---|---|---|
| ～において | In, at (time/place) | More location-based |
| ～によって | By means of | Broader, more general |
| ～を通じて | Through, via | Similar but often implies a process |
| ～をもって | Formal, often written | Used with time or methods |
📌 Nouns Commonly Used Before ～をもって
| Noun Type | Examples |
|---|---|
| Time/Date | 本日、3月末日、今回 |
| Method | 技術、努力、審査、誠意、能力 |
| Event | 終了、引退、開始、就任 |
✍️ Practice Challenge
Translate the following into Japanese using ～をもって:
- As of today, I have resigned.
- The conference will end as of tomorrow.
- We made our decision through discussion.
- Even with his ability, it was impossible.
🧠 (Answers below)
✨ Real-World Usage
This grammar is perfect for:
- Business announcements
- Company press releases
- Academic or scientific articles
- Speech scripts (ceremonies, award presentations)
Here’s a formal phrase you can borrow:
本日をもって、このプロジェクトに一区切りをつけさせていただきます。
(As of today, we are concluding this project.)
🏁 Summary
| Grammar Point | ～をもって |
|---|---|
| Meanings | 1. As of (Time) 2. By means of (Method) |
| Form | Noun + をもって |
| Register | Very formal, written or ceremonial |
| Common Contexts | Business, speeches, announcements |
✅ Practice Answers
- 本日をもって、辞職いたしました。
- 会議は明日をもって終了いたします。
- 話し合いをもって決定しました。
- 彼の能力をもってしても、不可能だった。
📘 Coming Next: ～べく – Expressing purpose with elegance and intent (similar to ～ために, but formal and written).
