Join
Join verb - To be adjacent to.
Key
Key verb - To bring to a state free of conflicts, inconsistencies, or differences.
Usage example: her response was perfectly keyed to the situation
How words are described
Both words in one sentence
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Enemy Mine: Episode 4x9 titled "Enemy of My Enemy," where Fringe teams from both universes join forces to defeat David Robert Jones, with Peter and Walternate as key allies in the work.
Source: Series / Fringe - Guybrush Threepwood in The Curse of Monkey Island sings incredibly off-key while trying to convince the three Barbary Coast pirates to join his crew.
Source: Hollywood Tone-Deaf - The key reason Earth Alliance agrees to join the new Interstellar Alliance is the promise of this technology.
Source: Inertial Dampening
Cite this Source
Key and Join. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/join/key
Join & Key. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/join/key>.
Key or Join. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/join/key.
Google Ngram Viewer shows how "join" and "key" have occurred on timeline