say it: SAHY-ruhn
siren is a noun meaning "a sea nymph (part woman and part bird) supposed to lure sailors to destruction on the rocks where the nymphs lived". It carries 5 recorded senses.
a woman who is considered to be dangerously seductive
a warning signal that is a loud wailing sound
an acoustic device producing a loud often wailing sound as a signal or warning
eellike aquatic North American salamander with small forelimbs and no hind limbs; have permanent external gills
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for siren come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.