Is “Checkup” a Scrabble word?
Yes
CHECKUP
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 Checkup
noun
1.A routine visit to the doctor, dentist, or the like.
“The appointment was just for a checkup.”
2.A routine inspection.
“I took my car in for an annual checkup.”