FO
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See also: Appendix:Variations of "fo"
Translingual[edit]
Symbol[edit]
FO
English[edit]
Noun[edit]
FO (plural FOs)
- (aviation) Initialism of first officer.
- Initialism of field officer.
- (logic, computer science) Initialism of first-order logic.
Interjection[edit]
FO
- (Internet slang, text messaging, vulgar) Initialism of fuck off.