# sine vs siren

> English confusable word pair

## The two words

### sine
*noun · IPA /saɪn/ · frequency rank #25,577*
In a right triangle, the ratio of the length of the side opposite an angle to the length of the hypotenuse.

### siren
*noun · IPA /ˈsaɪəɹən/ · frequency rank #15,909*
One of a group of nymphs who lured mariners to their death on the rocks.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/sine-vs-siren