This is the 8455th most frequent Japanese word.
懸け
"懸け" (kake) means "stake," "bet," or "risk" in English, often referring to something being wagered or risked.
In this sentence, the word "懸け" is used to indicate dedication or commitment towards an endeavor.
その試合に全力を懸けた。
He put all his effort into that match.
Here, "懸け" conveys the act of risking or staking something of great value, in this case one's own life.
命を懸けて守る。
I'll protect it with my life.
The usage of "懸け" in this sentence metaphorically implies being a connecting link or intermediary.