Meaning of “siren” in the English Dictionary

"siren" in British English

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(Definition of “siren” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"siren" in American English

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sirennoun [ C ]

us /ˈsɑɪ·rən/

siren noun [ C ] (DEVICE)

a device that makes a loud warning noise:

The terrible wail of sirens signaled a disaster.

siren noun [ C ] (WOMAN)

(in ancient Greek literature) a creature who was half woman and half bird, whose singing brought ships into dangerous waters

(Definition of “siren” from the Cambridge Academic Content Dictionary © Cambridge University Press)