Definition of "nighthawk" in Anglais

noun

1. (UK, regional) A nightjar, especially Caprimulgus europaeus (Eurasian nightjar).

2. (US) 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.

4. A nighthawker (metal detectorist who works illegally at night).

5. (Japan, historical) An unlicensed prostitute who worked the roadsides at night.