See also: Appendix:Variations of "oo"
English
Noun
OO
- Alternative letter-case form of oo.
Adjective
OO
- Initialism of object-oriented.
Korean
Etymology
From Japanese 点々 (tenten, “dots”). The spelling is an orthographic borrowing from Japanese ○○ (marumaru).
Noun
OO • (ttaengttaeng) (hangeul 땡땡)
- X (hidden name)
- Synonyms: 모(某), XX (XX)
김OO씨- Kim Ttaengttaeng ssi
- Mr. Kim X.