siren

1 of 2

noun

si·​ren ˈsī-rən 

for sense 3 also sī-ˈrēn

1

often Siren : 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

b

: temptress

c

: temptation sense 2

3

a

: an apparatus producing musical tones especially in acoustical studies by the rapid interruption of a current of air, steam, or fluid by a perforated rotating disk

b

: a device often electrically operated for producing a penetrating warning sound

an ambulance siren

an air-raid siren

4

[New Latin, from Latin] : either of two North American eel-shaped amphibians that constitute a genus (Siren) and have small forelimbs but neither hind legs nor pelvis and have permanent external gills as well as lungs

siren

2 of 2

adjective

si·​ren ˈsī-rən 

: resembling that of a siren : enticing

Did you know?

The sirens were a group of partly human female creatures that lured sailors onto destructive rocks with their singing. Odysseus and his men encountered the sirens on their long journey home from Troy. The only way to sail by them safely was to make oneself deaf to their enchanting song, so Odysseus packed the men's ears with wax, while he himself, ever curious, kept his ears open but had himself tied to the mast to keep from flinging himself into the water or steering his ship toward sure destruction in his desire to see them. A siren today is a sinister but almost irresistible woman. A siren song, however, may be any appeal that lures a person to act against his or her better judgment.

Synonyms of siren

Noun

• temptress
• seducer
• vamp
• seductress
• femme fatale

Examples of siren in a Sentence

Noun

the wailing of air-raid sirens

one of history's most famous sirens, Cleopatra charmed both Julius Caesar and Mark Antony

Recent Examples on the Web

Noun

In all, 10 on-duty Portage officers, two off-duty officers and a Porter County sheriff’s deputy rushed to the scene with lights and sirens activated, the department said. —Ashley Vega, PEOPLE, 20 Apr. 2026

Saturday, in a show that ended with the sound of ambulance sirens. —Chris Willman, Variety, 20 Apr. 2026

Adjective

The alerts were triggered by the severe thunderstorm moving through the area, alarming some residents who were unaware the city’s siren system now also goes off when a severe weather warning is issued by the National Weather Service. —Gloria Casas, Chicago Tribune, 16 Apr. 2026

At the time, officials said the siren repair costs will total roughly $180,000 over the next three years, and another $17,000 per year for maintenance. —Dejanay Booth-Singleton, CBS News, 15 Apr. 2026

Word History

Etymology

Noun

Middle English, from Middle French & Latin; Middle French sereine, from Late Latin sirena, from Latin siren, from Greek seirēn

First Known Use

Noun

14th century, in the meaning defined at sense 1

Adjective

1568, in the meaning defined above

Phrases Containing siren

• siren call
• siren song

Rhymes for siren

• syren
• agropyron
• environ

Kids Definition

siren

noun

si·​ren

ˈsī-rən

for sense 3 also sī-ˈrēn

1

often capitalized : one of a group of womanlike creatures especially in Greek mythology that lured mariners to destruction by their singing

2

: a tempting woman

3

: a device often electrically operated for producing a loud shrill warning sound

ambulance siren

Etymology

Noun

Middle English siren "a partly female creature in Greek legend whose beautiful singing lured sailors to their deaths," from early French siren and Latin siren (both, same meaning), from Greek seirēn (same meaning)

Word Origin

In the Greek epic poem The Odyssey, Homer tells of the adventures of Odysseus on his voyage home after the Trojan War. One of these adventures involves a couple of sea nymphs, called Sirens, who are half woman and half bird. They attract sailors by the beauty of their singing, which causes the ships to crash on the rocks. To avoid such a fate, Odysseus has his sailors' ears filled with wax so that they cannot hear the Sirens' song. He has himself tied to a mast so that he cannot steer the ship toward the rocks. It works. The ship succeeds in getting past the Sirens, who are then so upset that they drown themselves. The word siren lives on, however. It was taken into Latin, French, and English. It has been used for "a tempting woman," but its chief use is for "a loud-sounding warning device." Its sound is far from beautiful, but it does signal danger.