# を機に: as an opportunity/chance to ~

> Learn how to use を機に, a JLPT N1 grammar point meaning as an opportunity, with formation, examples, nuance, comparisons, and practice.

JLPT level: N1 · Updated: 2026-05-18 · Canonical: https://hane-app.com/blog/n1-o-ki-ni/

**を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** means **as an opportunity/chance to ~**. It is a **JLPT N1** Japanese grammar pattern used to express that you deliberately take a significant event or situation as a starting point for a new action or decision.

This grammar point often appears in formal announcements, essays, speeches, and JLPT N1 reading passages. If you want to express that you are seizing a moment as a chance to change something or start doing something, **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** is a useful pattern to learn because it adds natural, purposeful nuance to your Japanese.

## What does を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に mean?

Use **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** when you want to mark a landmark event as the opportunity to do something — not just a temporal “when,” but a deliberate choice to use the moment as a springboard.

Natural translations include:
- taking ~ as an opportunity
- on the occasion of ~ (when the occasion acts as a catalyst)
- seeing ~ as a chance to…

The best translation depends on the sentence. Try to sense whether the speaker is merely noting a time or actively treating the event as a turning point — that tells you **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** is the right fit.

## How to form を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に

<div class="formation">
  <span class="ftoken t-core">Noun</span>
  <span class="fplus">+</span>
  <span class="ftoken t-aux">を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に</span>
  <span class="farrow">→</span>
  <span class="formula">taking Noun as an opportunity</span>
</div>

You can also use these more formal variations:

- **Noun + を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>にして**
- **Noun + を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>として** (especially in written, formal contexts)

The noun before **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** must refer to a significant event, life stage, or notable occasion — things like <ruby>卒業<rp>(</rp><rt>そつぎょう</rt><rp>)</rp></ruby> (graduation), <ruby>転職<rp>(</rp><rt>てんしょく</rt><rp>)</rp></ruby> (job change), <ruby>結婚<rp>(</rp><rt>けっこん</rt><rp>)</rp></ruby> (marriage), <ruby>帰省<rp>(</rp><rt>きせい</rt><rp>)</rp></ruby> (homecoming), etc. Abstract time words (<ruby>昨日<rp>(</rp><rt>さくじつ</rt><rp>)</rp></ruby>, <ruby>来週<rp>(</rp><rt>らいしゅう</rt><rp>)</rp></ruby>) don’t work; you need a substantial landmark.

In JLPT questions, wrong answer choices often try to attach **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** to a verb directly. The grammar attaches to nouns only — if you have a verb, nominalise it first (e.g., <ruby>帰省<rp>(</rp><rt>きせい</rt><rp>)</rp></ruby>する → <ruby>帰省<rp>(</rp><rt>きせい</rt><rp>)</rp></ruby>を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に).

## When is を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に used?

Use **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** in situations like:
- a major life event (marriage, graduation, moving house)
- starting a new habit or quitting an old one after a significant change
- formal announcements, company statements, or personal declarations about a fresh start
- written pieces where the writer reflects on a turning point

Tone and register:
- neutral to formal; primarily for written expression and careful spoken language
- sounds too stiff for casual daily banter — in those settings, **をきっかけに** is more natural
- Common in test questions, news bulletins, business letters, and JLPT N1 reading

## を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に example sentences

<div class="example">
  <p class="example-jp"><span class="furi"><ruby>卒業<rt>そつぎょう</rt></ruby></span>を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に、<span class="furi"><ruby>海外<rt>かいがい</rt></ruby></span>で<span class="furi"><ruby>働<rt>はたら</rt></ruby></span>くことにした。</p>
  <p class="example-en">I decided to work abroad upon graduation.</p>
  <div class="example-foot"><span class="example-tag">life change</span></div>
</div>

<div class="example">
  <p class="example-jp"><span class="furi"><ruby>転職<rt>てんしょく</rt></ruby></span>を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に、<span class="furi"><ruby>生活<rt>せいかつ</rt></ruby></span>リズムを<span class="furi"><ruby>整<rt>ととの</rt></ruby></span>えた。</p>
  <p class="example-en">I straightened out my daily rhythm when I changed jobs.</p>
  <div class="example-foot"><span class="example-tag">habit change</span></div>
</div>

<div class="example">
  <p class="example-jp"><span class="furi"><ruby>帰省<rt>きせい</rt></ruby></span>を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に、<span class="furi"><ruby>家族<rt>かぞく</rt></ruby></span>の<span class="furi"><ruby>大切<rt>たいせつ</rt></ruby></span>さを<span class="furi"><ruby>改<rt>あらた</rt></ruby></span>めて<span class="furi"><ruby>実感<rt>じっかん</rt></ruby></span>した。</p>
  <p class="example-en">My homecoming made me realise anew how important family is.</p>
  <div class="example-foot"><span class="example-tag">reflection</span></div>
</div>

<div class="example">
  <p class="example-jp"><span class="furi"><ruby>結婚<rt>けっこん</rt></ruby></span>を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に、<span class="furi"><ruby>貯金<rt>ちょきん</rt></ruby></span>を<span class="furi"><ruby>始<rt>はじ</rt></ruby></span>めた。</p>
  <p class="example-en">I started saving money after getting married.</p>
  <div class="example-foot"><span class="example-tag">new habit</span></div>
</div>

<div class="example">
  <p class="example-jp"><span class="furi"><ruby>新<rt>あたら</rt></ruby></span>しい<span class="furi"><ruby>年<rt>とし</rt></ruby></span>を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に、<span class="furi"><ruby>禁煙<rt>きんえん</rt></ruby></span>を<span class="furi"><ruby>決意<rt>けつい</rt></ruby></span>しました。</p>
  <p class="example-en">With the new year as an opportunity, I resolved to quit smoking.</p>
  <div class="example-foot"><span class="example-tag">resolution</span></div>
</div>

After reading each sentence, ask what job **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** is doing: marking a deliberate choice to use an event as a springboard. That makes the nuance easier to remember than a one-word translation.

## Nuance of を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に

The key nuance is **deliberate action triggered by a landmark event**. The speaker is not simply noting that something happened “when X occurred”; they are treating X as a conscious opportunity to change, start, or stop something.

This matters because learners often translate **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** as merely “when,” losing the intentionality. A sentence like “<ruby>卒業<rp>(</rp><rt>そつぎょう</rt><rp>)</rp></ruby>を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に<ruby>海外<rp>(</rp><rt>かいがい</rt><rp>)</rp></ruby>で<ruby>働く<rp>(</rp><rt>はたらく</rt><rp>)</rp></ruby>” implies you actively chose graduation as the moment to make a move — it’s not just a coincidence of timing.

In contrast, patterns like **を<ruby>境<rp>(</rp><rt>さかい</rt><rp>)</rp></ruby>に** focus on the event as a clean before/after divide without necessarily carrying that sense of personal opportunity. Similarly, **をきっかけに** introduces a trigger (often smaller or more spontaneous) but lacks the formal weight of **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に**.

## を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に vs を<ruby>境<rp>(</rp><rt>さかい</rt><rp>)</rp></ruby>に

Both **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** and **を<ruby>境<rp>(</rp><rt>さかい</rt><rp>)</rp></ruby>に** can appear with life-stage nouns, but they are different.

<div class="compare">
  <div class="cmp a">
    <div class="cmp-head">を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に</div>
    <div class="cmp-sub">taking as an opportunity</div>
    <div class="cmp-when">When the speaker deliberately uses the event to start or change something.</div>
    <div class="cmp-eg"><ruby>卒業<rp>(</rp><rt>そつぎょう</rt><rp>)</rp></ruby>を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に<ruby>留学<rp>(</rp><rt>りゅうがく</rt><rp>)</rp></ruby>した。</div>
    <div class="cmp-eg-en">I took graduation as the chance to study abroad.</div>
  </div>
  <div class="vs">vs</div>
  <div class="cmp b">
    <div class="cmp-head">を<ruby>境<rp>(</rp><rt>さかい</rt><rp>)</rp></ruby>に</div>
    <div class="cmp-sub">as a turning point / boundary</div>
    <div class="cmp-when">When the event merely marks a clear before/after divide, often without active personal initiative.</div>
    <div class="cmp-eg"><ruby>卒業<rp>(</rp><rt>そつぎょう</rt><rp>)</rp></ruby>を<ruby>境<rp>(</rp><rt>さかい</rt><rp>)</rp></ruby>に<ruby>連絡<rp>(</rp><rt>れんらく</rt><rp>)</rp></ruby>が<ruby>途絶え<rp>(</rp><rt>とだえ</rt><rp>)</rp></ruby>た。</div>
    <div class="cmp-eg-en">After graduation, we lost contact completely.</div>
  </div>
</div>

Quick contrast tip: if the sentence emphasises what you decided to do and why the moment matters, **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** fits. If it emphasises a stark change in situation (often beyond your control), **を<ruby>境<rp>(</rp><rt>さかい</rt><rp>)</rp></ruby>に** is more natural.

## Common mistakes with を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に

<div class="mistakes">

  <div class="mistake">
    <div class="mline">
      <span class="mark bad">❌</span>
      <div class="mline-body"><span class="bad"><ruby>大学<rp>(</rp><rt>だいがく</rt><rp>)</rp></ruby>に<ruby>入学<rp>(</rp><rt>にゅうがく</rt><rp>)</rp></ruby>するを<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に<ruby>一人暮らし<rp>(</rp><rt>ひとりぐらし</rt><rp>)</rp></ruby>を<ruby>始め<rp>(</rp><rt>はじめ</rt><rp>)</rp></ruby>た。</span></div>
    </div>
    <div class="mline">
      <span class="mark good">✅</span>
      <div class="mline-body"><span class="good"><ruby>大学<rp>(</rp><rt>だいがく</rt><rp>)</rp></ruby><ruby>入学<rp>(</rp><rt>にゅうがく</rt><rp>)</rp></ruby>を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に<ruby>一人暮らし<rp>(</rp><rt>ひとりぐらし</rt><rp>)</rp></ruby>を<ruby>始め<rp>(</rp><rt>はじめ</rt><rp>)</rp></ruby>た。</span></div>
    </div>
    <div class="note"><strong>Never attach を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に directly to a verb.</strong> Use the noun form (<ruby>入学<rp>(</rp><rt>にゅうがく</rt><rp>)</rp></ruby>, <ruby>帰省<rp>(</rp><rt>きせい</rt><rp>)</rp></ruby>, <ruby>転職<rp>(</rp><rt>てんしょく</rt><rp>)</rp></ruby>) — if you must include a verb, nominalise it first (e.g. <ruby>入学<rp>(</rp><rt>にゅうがく</rt><rp>)</rp></ruby>する → <ruby>入学<rp>(</rp><rt>にゅうがく</rt><rp>)</rp></ruby>).</div>
  </div>

  <div class="mistake">
    <div class="mline">
      <span class="mark bad">❌</span>
      <div class="mline-body"><span class="bad"><ruby>昨日<rp>(</rp><rt>きのう</rt><rp>)</rp></ruby>を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に<ruby>毎日<rp>(</rp><rt>まいにち</rt><rp>)</rp></ruby><ruby>走る<rp>(</rp><rt>はしる</rt><rp>)</rp></ruby>ことにした。</span></div>
    </div>
    <div class="mline">
      <span class="mark good">✅</span>
      <div class="mline-body"><span class="good"><ruby>健康診断<rp>(</rp><rt>けんこうしんだん</rt><rp>)</rp></ruby>の<ruby>結果<rp>(</rp><rt>けっか</rt><rp>)</rp></ruby>を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に<ruby>毎日<rp>(</rp><rt>まいにち</rt><rp>)</rp></ruby><ruby>走る<rp>(</rp><rt>はしる</rt><rp>)</rp></ruby>ことにした。</span></div>
    </div>
    <div class="note">The noun must be a concrete event with enough weight to serve as a turning point. Simple time references like “yesterday” or “next week” don’t carry that significance.</div>
  </div>

  <div class="mistake">
    <div class="mline">
      <span class="mark bad">❌</span>
      <div class="mline-body"><span class="bad"><ruby>友達<rp>(</rp><rt>ともだち</rt><rp>)</rp></ruby>に<ruby>誘わ<rp>(</rp><rt>さそわ</rt><rp>)</rp></ruby>れたのを<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>にジムに<ruby>通い<rp>(</rp><rt>かよい</rt><rp>)</rp></ruby><ruby>始め<rp>(</rp><rt>はじめ</rt><rp>)</rp></ruby>た。（overly formal for this casual trigger）</span></div>
    </div>
    <div class="mline">
      <span class="mark good">✅</span>
      <div class="mline-body"><span class="good"><ruby>友達<rp>(</rp><rt>ともだち</rt><rp>)</rp></ruby>に<ruby>誘わ<rp>(</rp><rt>さそわ</rt><rp>)</rp></ruby>れたのをきっかけにジムに<ruby>通い<rp>(</rp><rt>かよい</rt><rp>)</rp></ruby><ruby>始め<rp>(</rp><rt>はじめ</rt><rp>)</rp></ruby>た。</span></div>
    </div>
    <div class="note">When the trigger is small or personal, <strong>をきっかけに</strong> sounds far more natural. Reserve を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に for formal or landmark-like moments.</div>
  </div>

</div>

A helpful practice method is to write one sentence with **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に**, then rewrite it with **をきっかけに** and **を<ruby>境<rp>(</rp><rt>さかい</rt><rp>)</rp></ruby>に**. Compare the tone — if the formal, intentional flavour disappears, you know **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** was the right original choice.

## Is を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に on the JLPT?

<div class="jlpt-card">
  <div class="jlpt-shield">N1</div>
  <div class="jlpt-info">
    <div class="jlpt-checks">
      <span>🔹 frequently appears in reading comprehension</span>
      <span>🔹 tested for its nuance vs similar patterns (をきっかけに, を<ruby>境<rp>(</rp><rt>さかい</rt><rp>)</rp></ruby>に)</span>
      <span>🔹 often embedded in formal passages — you need to recognise its deliberate, opportunity-focused meaning</span>
    </div>
    <p>For test preparation, study the grammar in full sentences. JLPT questions often test whether you understand the surrounding context and the speaker's intent, not just the dictionary meaning.</p>
  </div>
</div>

Yes. **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** is commonly taught as **N1 grammar**. That means learners should be able to recognise it in reading, understand its nuance in context, and potentially use it in writing or formal speech.

## Practice questions for を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に

<div class="prompts">

  <div class="prompt">
    <span class="prompt-num">1</span>
    <div class="prompt-text">
      <p>Describe a personal experience — something you started or changed because of a significant event — using を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に.</p>
    </div>
    <span class="prompt-tag">sentence</span>
  </div>

  <div class="prompt">
    <span class="prompt-num">2</span>
    <div class="prompt-text">
      <p>Write two sentences: one with を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に and one with をきっかけに, using the same event. Explain the difference in tone.</p>
    </div>
    <span class="prompt-tag">comparison</span>
  </div>

  <div class="prompt">
    <span class="prompt-num">3</span>
    <div class="prompt-text">
      <p>Create a sentence about a historical event (e.g., a country’s independence) using を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に. Then explain why を<ruby>境<rp>(</rp><rt>さかい</rt><rp>)</rp></ruby>に might or might not also work.</p>
    </div>
    <span class="prompt-tag">context</span>
  </div>

</div>

Keep your first sentences simple — one clear event, one clear action. Once the structure feels natural, add more context so the nuance becomes clear.

## Learning path for を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に

To learn **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** efficiently, start with its formation, then compare it with similar patterns, and finally practice in extended contexts.

<div class="path">

  <div class="path-step">
    <span class="step-num">1</span>
    <div class="step-body">Make sure you can attach を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に correctly to nouns. Write at least three examples using life-stage words (<ruby>卒業<rp>(</rp><rt>そつぎょう</rt><rp>)</rp></ruby>, <ruby>帰省<rp>(</rp><rt>きせい</rt><rp>)</rp></ruby>, <ruby>結婚<rp>(</rp><rt>けっこん</rt><rp>)</rp></ruby>). Check that no verbs slip in un-nominalised.</div>
  </div>
  <div class="path-step">
    <span class="step-num">2</span>
    <div class="step-body">Compare it with <strong>をきっかけに</strong> and <strong>を<ruby>境<rp>(</rp><rt>さかい</rt><rp>)</rp></ruby>に</strong>. Write a short paragraph about a turning point in your life, then rephrase it twice — once with をきっかけに and once with を<ruby>境<rp>(</rp><rt>さかい</rt><rp>)</rp></ruby>に. Notice which feels too casual or too passive.</div>
  </div>
  <div class="path-step">
    <span class="step-num">3</span>
    <div class="step-body">Expose yourself to formal texts. Read a company announcement or a news article and highlight any を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に patterns. Identify the deliberate action the writer is linking to the event.</div>
  </div>
  <div class="path-step">
    <span class="step-num">4</span>
    <div class="step-body">Produce a short formal statement of your own (e.g., a resolution you’re making public). Use を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に to explain why now is the moment. Check the overall tone — it should feel serious and purposeful.</div>
  </div>

</div>

## Related grammar to review next

- [を<ruby>踏まえ<rp>(</rp><rt>ふまえ</rt><rp>)</rp></ruby>て](/blog/n1-o-fumaete/) — because it also uses an event as a basis for subsequent action, though here it’s about “based on” rather than opportunity.
- [を<ruby>経<rp>(</rp><rt>へ</rt><rp>)</rp></ruby>て](/blog/n1-o-hete/) — because it also places an event in a sequence, but focuses on passing through a stage rather than seizing a chance.
- [を<ruby>控え<rp>(</rp><rt>ひかえ</rt><rp>)</rp></ruby>て](/blog/n1-o-hikaete/) — because it also deals with a significant upcoming event, though it describes facing something imminent rather than launching off it.
- [をいいことに](/blog/n1-o-ii-koto-ni/) — because it also uses a situation as leverage, but with a negative or exploitative nuance.

## Learn を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に with Hane

If you want to review **を<ruby>機<rp>(</rp><rt>き</rt><rp>)</rp></ruby>に** together with the related patterns above, Hane helps you practice Japanese in short, focused sessions.

Browse more lessons here:
- [All grammar lessons](/blog/)
- [JLPT N1 grammar lessons](/blog/n1/)