Meaning ofnightwalkerin English

Noun

1. a sleepwalker; noctambulist
   The doctor studied the nightwalker who got up and walked around during sleep.
2. a street prostitute (archaic term)
   The nightwalker roamed the deserted streets in search of clients.
3. a vampire (fantasy context)
   In the fantasy novel, the nightwalker was a bloodthirsty vampire.