godan verb (-su), transitive verb
pierce through; penetrate; go through
Physical action of piercing or penetrating something completely, often with force or determination. Less common than the figurative sense.
See also: 貫く (つらぬく)
槍が敵の鎧を貫き通した。
The spear pierced through the enemy's armor.
godan verb (-su), transitive verb
stick to; carry out; persist with; maintain
Figurative use: to adhere firmly to an opinion, principle, faith, or course of action despite obstacles. Often implies unwavering determination.
See also: 貫く (つらぬく)
彼は最後まで自分の信念を貫き通した。
He stuck to his convictions to the very end.
困難があっても計画を貫き通すつもりだ。
I intend to carry out the plan even if there are difficulties.