Definitions
1.nounOne of a group of nymphs who lured mariners to their death on the rocks.
2.nounOne who sings sweetly and charms.
3.nounA dangerously seductive woman.
4.nounA member of an order of mammals of Sirenia (first attested in French in Dominique Bouhours, Les entretiens d'Ariste et d'Eugène, 1671).
5.nounA member of a genus of aquatic salamanders of the family Sirenidae (originally introduced by Linnaeus, 1766, for a genus of his reptiles), commonly used for all species subsumed under the family of Sirenidae.
6.nounAny of various nymphalid butterflies of the genus Hestina.
7.nounA device, either mechanical or electronic, that makes a piercingly loud sound as an alarm or signal, or the sound from such a device (first recorded 1879).
8.nounA musical instrument, one of the few aerophones in the percussion section of the symphony orchestra (patented as Acme Siren in 1895).
9.nounAn instrument for demonstrating the laws of beats and combination tones.
10.nounAn astrophysical event that can be used for calculating cosmic distances.
11.verbTo make a noise with, or as if with, a siren.
12.adjectiveRelating to or like a siren.