Site ou Application en O
- Orange
- Outlook
- Omegle
- Orange.fr
- Opera
- Ornikar
- origin
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- Ouigo
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- OpenOffice
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- Obey.com
- Onet
- Orange mobile
- Oracle.com
- Oréo.fr
- Openclassroom
- oredoo
- omeegle
Slová v zozname Site ou Application en O pochádzajú od hráčov slovnej hry Meno, Mesto, Zviera, Vec.