Meaning of 切殺斬 in Japanese

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Definition of 切殺斬

きる(kiru) 【斬る】

(v5r) to kill (a human) using a blade (sword, machete, knife, etc.); to slice (off); to lop (off); to cut (off)

せつ(setsu) 【切】

やる(yaru) 【殺る】

(v5r, vt) to do someone in; to bump someone off
もう一度政治家を殺ってみたかったが出来なかった。
We tried again to bump off the politician, but couldn't do it.