Meaning Out of office
Type Acronym
Rank ★ ★ ★  Common
Usage Online Only (chat, messaging, e-mail)
Comments OOO may be used in workplace communication to let others know that you are not in the office, or won't be in at a later time. Still, it's best not to use acronyms in formal communication.
Example "I will be OOO this afternoon."
Updated February 11, 2010