Is “Swiftly” a Scrabble word?
Yes
SWIFTLY
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 Swiftly
/ˈswɪftli/
adverb
1.In a swift manner; quickly; with quick motion or velocity; fleetly.