Straighten
Straighten verb - To cause to follow a line that is without bends or curls.
Sit up and straighten are semantically related. In some cases you can use "Sit up" instead a verb "Straighten".
Nearby Words: straight, straightening
Sit up
Sit up verb - Change to an upright sitting position.
Straighten and sit up are semantically related. Sometimes you can use "Straighten" instead a verb "Sit up".
Cite this Source
Sit up and Straighten. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/straighten/sit_up
Straighten & Sit up. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/straighten/sit_up>.
Sit up or Straighten. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/straighten/sit_up.
Google Ngram Viewer shows how "straighten" and "sit up" have occurred on timeline