守まもり切きる

godan verb (-ru), transitive verb

protect to the end; hold on to; defend successfully

Emphasizes fully protecting or keeping something until the end, often against pressure or difficulty. Used for secrets, leads, positions, or promises.

• 彼かれは最さい後ごまで秘ひ密みつを守まもり切きった。

  He kept the secret to the very end.

• チームはリードを守まもり切きって優ゆう勝しょうした。

  The team held on to the lead and won the championship.