| Noun | 1. | Siren - a sea nymph (part woman and part bird) supposed to lure sailors to destruction on the rocks where the nymphs lived; "Odysseus ordered his crew to plug their ears so they would not hear the Siren's fatal song"sea nymph - (Greek mythology) a water nymph who was the daughter of Oceanus or Nereus Lorelei - a siren of German legend who lured boatmen in the Rhine to destruction | |
| 2. | siren - a woman who is considered to be dangerously seductiveadult female, woman - an adult female person (as opposed to a man); "the woman kept house while the man hunted" | |
| 3. | siren - a warning signal that is a loud wailing sound | |
| 4. | siren - an acoustic device producing a loud often wailing sound as a signal or warning | |
| 5. | siren - eel-like aquatic North American salamander with small forelimbs and no hind limbs; have permanent external gillssalamander - any of various typically terrestrial amphibians that resemble lizards and that return to water only to breed | |