その日を境に
Why does this mean 'On that day', does 境 mean something other then 'boundary'/'area' in this sentence?
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1In this sentence? You seem to have forgotten to include the sentence.– user3856370Apr 21, 2019 at 16:38
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That was all there was to it– M---Apr 21, 2019 at 16:52
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2I'm guessing it means 'from that day' rather than 'on that day'. Literally "with that day as a watershed". But that really is just a logical guess. I've never seen it before. If you're not familiar with the AをBに construction then try this link: japanese.stackexchange.com/questions/20854/…– user3856370Apr 21, 2019 at 16:58
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1 Answer
「その日を境{さかい}に」
「境」 in this phrase means a "turning point" where something changed.
What it is that changed must be explained (or at least implied) in the context before this phrase appears.
"Ever since that day..."