Is “Apse” a Scrabble word?
Yes
APSE
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 Apse
/æps/
noun
1.A semicircular projection from a building, especially the rounded east end of a church that contains the altar.
2.The bishop's seat or throne in ancient churches.
3.A reliquary, or case in which the relics of saints were kept.