Check
Check noun - The amount owed at a bar or restaurant or the slip of paper stating the amount.
Jack
Jack noun - A piece of cloth with a special design that is used as an emblem or for signaling.
Both words in one sentence
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Jack calls Heller to check if this is a bluff but it isn't: Heller can see the chopper.
Source: Better to Die than Be Killed - Jack collapses, and the Scientist goes up to check his work, only for Jack to spit the water into the scientist's mouth.
Source: Vignette Episode -
Jack expects the select few in the circle to be utterly honest, but he cannot keep his suspicions in check.
Source: Film / Meet the Parents
Cite this Source
Jack and Check. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/check/jack
Check & Jack. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/check/jack>.
Jack or Check. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/check/jack.
Google Ngram Viewer shows how "check" and "jack" have occurred on timeline