徹 - penetrate, clear, pierce

accomplishment; realization; attainment; fulfillment; achievement

staying up all night

cool-headed; level-headed; hard-headed

to penetrate; to sink in

thorough; exhaustive; complete

thoroughness; completeness; consistency

transparency

to have a deep grudge; to bear deep resentment towards someone

all-night karaoke

clearness (e.g. sky); transparency

armor piercing ammunition; armour piercing ammunition

thoroughly; through and through; out and out; in every way; from beginning to end; from start to finish