Lurk/lɜːrk/ Definition 1 of 4Pro Tip 1/2Negative Connotation Lurking implies waiting with a potentially harmful intent, often secretly. Beware of strangers lurking around the park at night. Pro Tip 2/2Physical Concealment 'Lurk' suggests hiding out of sight, not just staying unnoticed. He could sense someone lurking behind the curtain.