often capitalized : any of a group of female and partly human creatures in Greek mythology that lured mariners to destruction by their singing 2 a : a woman who sings with enchanting sweetness

Siren : one of a group of female creatures in Greek mythology whose singing attracted sailors and caused them to sail into dangerous water or toward rocks SIREN meaning: 1 : a piece of equipment that produces a loud, high-pitched warning sound; 2 : a woman who is very attractive but also dangerous temptress

siren noun [C] (WOMAN) (in ancient Greek literature) one of the creatures who were half woman and half bird, whose beautiful singing encouraged sailors to sail into dangerous waters where they died a woman who is considered to be very attractive, but also dangerous

a seductively beautiful or charming woman, esp. one who beguiles men: a siren of the silver screen.