noun
(UK, regional) A nightjar, especially Caprimulgus europaeus (Eurasian nightjar).
(US) A New World nightjar of the genus Chordeiles, especially Chordeiles minor.
A person whose preference or custom is to remain awake and active during the night and the early morning hours.
A nighthawker (metal detectorist who works illegally at night).
(Japan, historical) An unlicensed prostitute who worked the roadsides at night.
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