???? What is this grammar?
〜をもって is a formal expression used to mean:
- “By means of…”
- “With…”
- “As of…” (when expressing a time)
It’s often used in written, formal, or ceremonial contexts like official statements, business announcements, and legal documents.
???? Structure
| Type | Structure | Example |
|---|---|---|
| Noun + をもって | 笑顔をもって | With a smile |
| Date/Time + をもって | 3月31日をもって | As of March 31 |
???? Meanings and Usage
1️⃣ By means of / With / Using (method, means)
Used to express the method or means used to achieve something.
Example:
- 最新の技術をもって解決する。
→ We will solve it by means of the latest technology.
2️⃣ As of (specific time)
Used to indicate the end or start of a situation at a specific time.
Example:
- 本日をもって閉店いたします。
→ We will close as of today.
???? Example Sentences
| Japanese | English |
|---|---|
| 本日をもって退職いたします。 | I will resign as of today. |
| これをもって、会議を終了します。 | With this, we conclude the meeting. |
| 誠意をもって対応します。 | We will respond with sincerity. |
| 最新の科学技術をもって治療を行う。 | We will conduct treatment using the latest technology. |
| 3月31日をもって、営業を終了します。 | Business will cease as of March 31. |
???? Nuances & Tone
- Extremely formal and written-only
- Common in:
- Official announcements
- Company notifications
- Contracts
- Ceremonial speeches
- Not used in casual conversations
???? Comparison with Similar Patterns
| Expression | Meaning | Nuance |
|---|---|---|
| 〜で | By, with | Neutral, everyday |
| 〜によって | By means of, due to | Formal, factual |
| 〜をもって | By means of, with | Very formal, ceremonial |
| 〜を通じて | Through, via | Slightly formal |
Example:
- 笑顔で対応する。→ neutral
- 笑顔をもって対応する。→ formal, ceremonial
✅ Practice Exercise
Translate into Japanese using ～をもって:
- As of today, I will leave the company.
- This concludes the event.
- We will respond with sincerity.
- We will treat the patient using advanced technology.
Possible Answers:
- 本日をもって退職いたします。
- これをもってイベントを終了します。
- 誠意をもって対応いたします。
- 最新の技術をもって患者を治療します。
???? Summary Table
| Grammar | ～をもって |
|---|---|
| Meaning | By means of, with, as of |
| Structure | Noun / Date/Time + をもって |
| Nuance | Very formal, written, ceremonial |
| Usage | Official announcements, contracts, business letters |
???? Pro Tip:
You’ll see this in:
- N1 reading passages
- Official company or school announcements
- Government notices
- Legal documents
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