Kanji: 徹

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JLPT Level:	JLPT N1 (most advanced level)
Kanken Level:	Kanken Level Pre-2 (learned during high school)
Grade:	Taught during the 7th through 9th grades in Japan
Radical:	彳 Radical name: ぎょうにんべん
Meaning:	Penetrate, clear, pierce, strike home, sit up (all night)
Usage:	Appears regularly in Japanese newspapers, but about 1000 kanji are used more often.

JLPT Level	Word	Meaning
N3	徹底(てってい)	thoroughness, completeness
N3	徹夜(てつや)	all night, all night vigil, sleepless night
N1	徹(てっ)する	to sink in, to penetrate, to devote oneself, to believe in, to go through, to do intently and exclusively