【JLPT N1 Grammar】〜を境に(〜をさかいに / ~wosakaini)
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Explanation:〜を境に

Meaning
"〜の時ときから / 〜をしてから / 〜をきっかけに"
「〜」の前まえと後あとで、状況じょうきょうが大おおきな変化へんかがあることを表あらわします。

Used to indicate a turning point or a significant change that occurs after a particular event or moment. It translates to "from (that point) on" or "since" and is used to highlight how things are different before and after a certain event, often marking a shift in someone's life, a trend, or a situation.

Form
N + を境に
※Nには時間を表すNounが来ます。

Points

  1. Turning Point: "〜を境に" emphasizes a clear turning point or a moment of change after which things are noticeably different.
  2. Before and After Comparison: It implicitly compares the state of affairs before and after the event or moment, often signaling a major shift or new phase.
  3. Formal Usage: While not overly formal, it tends to be used in somewhat structured or narrative language, particularly when describing significant changes.

JLPT Level
N1

Note
Cannot be used to express two actions that occur at the same time.



Sample sentenes

大学卒業だいがくそつぎょうを境さかいに、トムさんとは会あわなくなった。
I haven't seen Tom since we graduated from university.

妻つまの妊娠にんしんを境さかいに、タバコをやめました。
I quit smoking after my wife got pregnant.

ある日ひを境さかいに、彼かれは私わたしに冷つめたくなった。
From one day on, he became cold towards me.

あの事件じけんを境さかいに、彼かれは一度いちども笑わらわなくなった。
He hasn't smiled once since that incident.

退職たいしょくを境さかいに、東京とうきょうを離はなれて田舎いなかでのんびり暮くらしている。
Since retiring, I have left Tokyo and am living a relaxed life in the countryside.

コロナ禍かを境さかいに、在宅勤務ざいたくきんむが増ふえた。
Since the COVID-19 pandemic, remote work has increased.

Vocabulary

Japanese
English
妊娠 にんしん pregnancy

Similar Sentence Pattern

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