# CDO

> English word · Noun · frequency rank #55,312

## Definitions
1. Initialism of collateralized debt obligation.
2. Initialism of command duty officer.
3. Initialism of chief data officer.

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