# CSB

> English word · Proper noun · frequency rank #62,811

## Definitions
1. Initialism of Crime and Security Branch.
2. Initialism of Chemical Safety Board; short for U.S. Chemical Safety and Hazard Investigation Board.

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