# preventer

> English word · Noun · frequency rank #91,936

## Definitions
1. One who, or that which, prevents.
2. An arrangement, made with ropes and blocks, that prevents the boom of a sailing boat from performing a jibe.
3. Any of various lines set up to reinforce or relieve ordinary running or standing rigging.

## Etymology
From prevent + -er.

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