1. plural of nighthawk: nocturnal birds related to whippoorwills, with long wings and wide mouths for catching insects in flight
2. plural of nighthawk: people who are active late at night
Usage: informal

Examples

• The nighthawks swooped through the evening sky catching moths and beetles.
• Common nighthawks migrate south for the winter.
• We could hear the nighthawks calling as darkness fell.
• The city’s nighthawks filled the late-night diners and coffee shops.
• As nighthawks, they preferred working the graveyard shift.
• The park was a good spot to observe nighthawks during their evening hunt.
• Local nighthawks knew all the best 24-hour establishments.