By ProDev Teach | Updated: May 2025
📘 Meaning & Usage
The expression ~をもって is used to indicate “by means of” or “with.” It is often used in formal contexts to express the method, means, or tool used to achieve something. It is commonly found in official documents, speeches, or formal writing.
Structure:
Noun + をもって
Used when:
- Describing a method, means, or tool used to accomplish something.
- Expressing the time limit for a particular action (e.g., by a certain time).
- Often found in formal settings such as business, news, or speeches.
💡 Example Sentences
- この契約は本日をもって終了します。
This contract will end with today. - 彼の努力をもってしても、この問題は解決できなかった。
Even with his efforts, this problem couldn’t be solved. - 最新の技術をもって、より効率的なシステムを開発することが可能です。
With the latest technology, it is possible to develop a more efficient system. - ご報告をもって、会議を終了させていただきます。
With the report, we will conclude the meeting. - あなたのご理解をもって、問題は解決されるでしょう。
With your understanding, the problem will be solved.
📝 Grammar Notes
The structure ~をもって has several nuances. In some cases, it implies “with” in terms of tools or means, while in others, it refers to a time limit (e.g., “by a certain time”).
Examples of tools or methods:
- 技術 (technology)
- 努力 (effort)
- 手段 (means)
- 方法 (method)
Examples of time limits:
- 本日 (today)
- 締め切り (deadline)
- 期限 (deadline)
📝 Practice Exercises
1. Fill in the blanks
- 彼の努力( )、問題を解決することができました。
- 会議は15分( )終了します。
- このプロジェクトは最新技術( )進められています。
✔ Answers:
- 彼の努力 をもって、問題を解決することができました。
- 会議は15分 をもって 終了します。
- このプロジェクトは最新技術 をもって 進められています。
2. Translate into Japanese
- By your cooperation, the event was a great success.
- We will finish the task by the end of this week.
✔ Suggested Answers:
- あなたの協力をもって、イベントは大成功を収めました。
- この週末をもって、タスクは完了します。
📚 Related Grammar
- ~をもってしても: Even with… (used to show an extreme condition or ability)
- ~によって: By means of… (often interchangeable with ~をもって for methods)
- ~をもっている: To have… (common usage of もって)
🧠 Summary
- ~をもって = By means of / With
- Level: JLPT N1
- Form: Noun + をもって
- Style: Formal, Written, Used in official settings

I’m a software engineer based in Japan, with experience in developing web and mobile applications. I’m passionate about technology, especially in DevOps, AI, and app development using platforms like AWS, Flutter, and Node.js. My goal is to build a website that shares knowledge about the Japanese language and IT, helping everyone learn and grow more easily in the digital era.