siren

1 of 2

noun

si·​ren ˈsī-rən How to pronounce siren (audio)
for sense 3 also sī-ˈrēn
Synonyms of siren
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
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
: resembling that of a siren : enticing entry 1

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.

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
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Noun
Officers will come running toward the vehicle and its radio’s GPS signal, lights and sirens blazing. — Théoden Janes, Charlotte Observer, 26 Oct. 2026 Fahed Ahmro, a 51-year-old city worker, fled to a relative’s home after loudspeaker warnings and sirens woke him. — Sam Metz, Los Angeles Times, 24 Oct. 2026
Adjective
Safety Ed Reed, wearing the jersey of the late Sean Taylor, cranked the hurricane siren pregame before the team ran through the smoke onto the field. — Jordan McPherson, Miami Herald, 24 Oct. 2026 During the 2024 fires, Ruidoso’s emergency manager, Eric Queller, had overseen the evacuation of thousands using the siren system. — Abe Streep, ProPublica, 21 Oct. 2026 See All Example Sentences for siren

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

Time Traveler
The first known use of siren was in the 14th century

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Cite this Entry

“Siren.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/siren. Accessed 1 Nov. 2026.

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.

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