“Happening to know” in Japanese
Short answer
Happening to know in Japanese is “心当たり” (kokoroatari). Full meaning: having in mind, happening to know (of), idea (of), inkling.
Other ways to say “Happening to know” in Japanese
心当り
kokoroatari having in mind, happening to know (of), idea (of), inkling
心あたり
kokoroatari having in mind, happening to know (of), idea (of), inkling
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