JMdict: 1877710

根を詰める 【こんをつめる】

  1. [exp,v1] to persevere; to keep at something (regardless of one's fatigue)
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
根 Root, Radical, Head (pimple) コン ね, -ね
詰 Packed, Close, Pressed, Reprove, Rebuke, Blame キツ, キチ つ.める, つ.め, -づ.め, つ.まる, つ.む