Is “Armhole” a Scrabble word?
Yes
ARMHOLE
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 Armhole
/ˈɑɹmˌhoʊl/
noun
1.A human armpit.
2.Similar structures in other animals.
3.A hole for an arm in a piece of clothing.