Is “Underway” a Scrabble word?
Yes
UNDERWAY
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 Underway
noun
1.A road, track, path, or street for going under another way or obstacle.
2.An underground passage, tunnel.
3.A voyage, especially underwater.
adverb
1.In motion, in progress; being done or carried out; on a journey.