godan verb (-su), transitive verb
push through; carry through; insist on
Used when someone persists in asserting an opinion, plan, or demand despite opposition or difficulty. Often implies stubbornness or determination.
彼は自分の意見を最後まで立て通した。
He pushed through his opinion to the very end.
社長は強引にその計画を立て通そうとした。
The president tried to force the plan through.