Matthew 10:28ἀποκτεννόντων
Do not be afraid of those who kill the body but cannot kill the soul. Instead, fear the One who can destroy both soul and body in hell.
Mark 3:4ἀποκτεῖναι
And He asked them, “Which is lawful on the Sabbath: to do good or to do evil, to save life or to destroy it?” But they were silent.
Luke 12:4ἀποκτεινόντων
I tell you, My friends, do not be afraid of those who kill the body and after that can do no more.
John 5:18ἀποκτεῖναι
Because of this, the Jews tried all the harder to kill Him. Not only was He breaking the Sabbath, but He was even calling God His own Father, making Himself equal with God.
Acts 21:31ἀποκτεῖναι
While they were trying to kill him, the commander of the Roman regiment received a report that all Jerusalem was in turmoil.
Revelation 6:8ἀποκτεῖναι
Then I looked and saw a pale green horse. Its rider’s name was Death, and Hades followed close behind. And they were given authority over a fourth of the earth, to kill by sword, by famine, by plague, and by the beasts of the earth.

Abbott-Smith

ἀπο-κτείνω
(also in late forms -κτέννω, Mat.10:28, a1., LTTr., -κτεννύω, Mrk.12:5, WH), [in LXX for הָרַג, מוּת ;]
to kill: Mat.14:5, al.; before instr. ἐν (which see), Eph.2:16, Rev.2:23, al. Metaphorical: Rom.7:11; τ. ἔχθραν, Eph.2:16; τὸ γράμμα ἀποκτείνει 2Co.3:6 (on the perfective force of this verb, see M, Pr., 114)
(AS)

Sources: Abbott-Smith’s Manual Greek Lexicon of the New Testament (1922, public domain) and glosses from STEPBible TBESG (CC BY 4.0); STEPBible TAGNT (Greek New Testament, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.