godan verb (-su), transitive verb
walk through; walk the whole way
Emphasizes completing a walk from start to finish without giving up or using other transport. Often used for long distances or challenging routes.
彼は東京から大阪まで歩き通した。
He walked the whole way from Tokyo to Osaka.
雨の中を最後まで歩き通す
It was tough to walk through to the end in the rain.