Keel
Level
Level verb - To make equal in amount, degree, or status.
Mutual synonyms
Both words in one sentence
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That means anything level ten and below will keel over dead ( and rise as undead) before they even see it.
Source: Walking Wasteland -
The engineers also kept her trimmed laterally, pumping water from one side of the ship to the other to keep her on an even keel—she's the only liner to go down nearly level.
Source: Film / Titanic (1997)
Cite this Source
Level and Keel. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/keel/level
Keel & Level. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/keel/level>.
Level or Keel. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/keel/level.
Google Ngram Viewer shows how "keel" and "level" have occurred on timeline