Sunup
Sunup noun - The first appearance of light in the morning or the time of its appearance.
Sidereal day and sunup are semantically related. In some cases you can use "Sidereal day" instead a noun "Sunup".
Sidereal day
Sidereal day noun - The time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day.
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Synonyms for Sidereal day
Sunup and sidereal day are semantically related. Sometimes you can use "Sunup" instead a noun phrase "Sidereal day".
Mutual synonyms
Cite this Source
Sidereal day and Sunup. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/sunup/sidereal_day
Sunup & Sidereal day. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/sunup/sidereal_day>.
Sidereal day or Sunup. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/sunup/sidereal_day.
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