Clues
Both words in one sentence
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Also, the comic book included unguessable clues (such as what actions you had to take while splashing through the maze, and the key to a cipher message).
Source: Copy Protection -
Once you had to examine a specific window in a cabinet to find a glass with the key to the next room, but there were no clues as to which one to pick.
Source: Pixel Hunt - The hero is then called in to solve a mystery with three clues remarkably like the ones his friend mentioned, and the question of where he got those ideas is a plot key.
Source: Lampshade Hanging / Literature
Cite this Source
Key and Clues. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/clues/key
Clues & Key. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/clues/key>.
Key or Clues. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/clues/key.
Google Ngram Viewer shows how "clues" and "key" have occurred on timeline