思おもい当あたる

1. 1to suddenly understand (esp. on basis of experience or memory) ; to come to mind ; to recall (in a flash) ; to be reminded of ; to call to mind ; to think of ; to strike on ; to hit on an answer ; to seize the crux of a problem

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Kanji · tap to open

JMdict entry 1309350 · frequency rank 50. Source and licence.