JMdict: 2850626

主になる 【しゅになる】

  1. [exp,v5r] to take the lead (in doing); to take the initiative; to be the leader
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
主 Lord, Chief, Master, Main Thing, Principal シュ, ス, シュウ ぬし, おも, あるじ