Is “Nighthawk” a Scrabble word?
Yes
NIGHTHAWK
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 Nighthawk
/ˈnʌɪthɔːk/
noun
1.A nightjar, especially Caprimulgus europaeus.
2.A New World nightjar of the genus Chordeiles, especially Chordeiles minor.
3.A person whose preference or custom is to remain awake and active during the night and the early morning hours.
Synonyms: bullbat, nightjar, night owl, night person