wO

WO is an acronym and two-letter code that can refer to several different concepts depending on context. In industrial and facilities management, WO most commonly stands for work order, a document used to authorize and track a maintenance or repair task, including location, equipment, required resources, and scheduling information.

Geographically, W.O. is sometimes used as an abbreviation for Western Ontario, the western region of the Canadian province of Ontario. In sports and competition results, WO stands for walkover, indicating that a participant advances because their opponent did not compete or was disqualified.

In language tagging and metadata, 'wo' is the ISO 639-1 code for the Wolof language, used in cataloging and digital content description. In scheduling and project planning contexts, 'WO' can also appear as an informal shorthand for "week of," though this usage varies by organization.

Because capitalization and context matter, the meaning of WO should be inferred from where and how it appears.