Is “Sunup” a Scrabble word?
Yes
SUNUP
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Sunup
/ˈsʌnʌp/
noun
1.The time of day when the sun appears above the eastern horizon.
2.The change in color of the sky at sunup.
Synonyms: dawn, daybreak, sunrise