Synonyms for sunup Found 11 synonyms across 1 meaning for “sunup”. the first light of day (noun) dawndawningmorningauroradaybreakdayspringsunrisecockcrow Explore Related Words Rhymes with sunupSynonyms for dawnSynonyms for dawningSynonyms for morningSynonyms for auroraSynonyms for daybreak Synonym Finder | Rhyme Finder | Poetry Editor