Penetrate

Rarer in this ranking, but still part of the 2,608-character published set.

More common than 駄 (Burdensome), less common than 奴 (Dude).

The go radical on the left with a jackhammer on the right — you go forward with a jackhammer that penetrates through any wall.

In words

徹するてっする to sink in;to penetrate;to devote oneself;to believe in;to go through;to do intently and exclusivelyN1

徹底てってい thoroughness,completenessN3

徹夜てつや all night,all night vigil,sleepless nightN3

徹 is rank 1141 of 2,608 in published Japanese.