Flat
Lie down
Lie down verb - Assume a reclining position.
Both terms in one sentence
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Flint Lockwood of Cloudy with a Chance of Meatballs has wild hair that he has to struggle to get to lie down flat.
Source: Messy Hair
Cite this Source
Lie down and Flat. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/flat/lie_down
Flat & Lie down. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/flat/lie_down>.
Lie down or Flat. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/flat/lie_down.
Google Ngram Viewer shows how "flat" and "lie down" have occurred on timeline