Owl/aʊl/ Definition 1 of 2Pro Tip 1/3Nocturnal Nature Owls are known for being active at night, which is what 'nocturnal' means. The nocturnal owl could be seen hunting after dark. Pro Tip 2/3Sound Association Owls are often recognized by their unique hooting sounds. The haunting hoot of an owl echoed through the night. Pro Tip 3/3Cultural Symbolism In many cultures, owls symbolize wisdom or omens. In folklore, the owl's presence is sometimes seen as a sign of foresight.