Keep
Keep verb - To mark with an appropriate practice, rite, or ceremony.
Warn
Warn verb - To give notice to beforehand especially of danger or risk.
Common collocations
Both words in one sentence
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Wily Big Brother Is Watching: The narrator is similar to this to keep the characters from breaking the comic rules and to warn the author of outside threats.
Source: Webcomic / An Epic Comic -
When they're locked up, they're told that the cages' original purpose was to keep around birds that would die in toxic gas leaks and warn humans about them in time.
Source: Birdcaged - In "Just for Sidekicks" he's the one who helps Spike keep the other pets in line, and in "Inspiration Manifestation" he tries, in vain, to warn him against using the Tome of Eldritch Lore.
Cite this Source
Warn and Keep. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/keep/warn
Keep & Warn. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/keep/warn>.
Warn or Keep. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/keep/warn.
Google Ngram Viewer shows how "keep" and "warn" have occurred on timeline