Fail
Fail verb - To stop functioning.
Kill
Kill verb - To deprive of life.
Common collocations
Both words in one sentence
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He acts like an emotionless sociopath who won't hesitate to kill or fail everyone to pass the floor tests but that's because if he fails any of these tests, one of his friends will be killed by FUG.
Source: Beneath the Mask - The American ship manages to reach Mars, but finds their lander inoperative - they leave back for Earth, while systems on the ship fail and kill 4 of the 7 crew.
Source: Casual Interplanetary Travel - There's a rare bug where kill animations that for whatever reason fail to kill you can sometimes destroy your limbs as if you'd died.
Cite this Source
Kill and Fail. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/fail/kill
Fail & Kill. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/fail/kill>.
Kill or Fail. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/fail/kill.
Google Ngram Viewer shows how "fail" and "kill" have occurred on timeline