The Open Championship, Open Championship 2018, Open Your Heart, Eyes Open (bài hát), Noventi Open 2019, Office Open XML, BMW Open 2019, Open 13 2019, Canadian Open, Mutua Madrid Open 2017, Miami Open 2017, 2 on 2 Open Ice Challenge, Maharashtra Open 2022, Zug Open, Barcelona Open Banco Sabadell 2011, Chengdu Open, Open Automotive Alliance, OpenStreetMap, OpenOffice.org, Moselle Open 2021, Eyes Wide Open, Tata Open Maharashtra 2023, Open Road Films, Mutua Madrid Open 2019, Open Sud de France 2019, Rio Open 2022, Rio Open 2023, Qatar ExxonMobil Open 2019, European Open (quần vợt), European Open 2021, Halle Open 2022, European Open 2022, Maharashtra Open 2022 - Đôi, Erste Bank Open 2021, BMW Open 2019 - Đôi, Mutua Madrid Open 2018, Halle Open 2023, Libéma Open 2023, Halle Open 2021, OpenType, Miami Masters

Atlanta Open 2021, Qatar Total Open 2023, Mùa săn (phim 2006), OpenERP, Erste Bank Open 2022, Ladies Open Lausanne 2023, St. Petersburg Open 2021, Moselle Open 2022, Generali Open Kitzbühel 2021, WTA Poland Open 2021, Bad Homburg Open 2023, Watcom C/C++, Phần mềm nguồn mở, Miami Open 2019, Chile Open 2023, Swedish Open 2023, Mérida Open 2023, OpenAI, Ladies Open Lausanne 2022, Generali Open Kitzbühel 2023, With Arms Wide Open, Open Graphics Project, WTA Lyon Open 2023, Madrid Masters, Prague Open 2021, Open 13 2022, Chile Open 2021, Tel Aviv Open 2022, Liên minh thiết bị cầm tay mở, Generali Open Kitzbühel 2022, Ladies Open Lausanne 2021, BMW Open 2019 - Đơn, Open Season: Scared Silly, Stockholm Open 2021, Truy cập mở, Srpska Open 2023, ODF, Toray Pan Pacific Open 2022, Transylvania Open 2021, Tenerife Ladies Open 2021, Open Agriculture, Swedish Open 2022, Hamburg European Open 2023, Open Sud de France 2022, Qatar ExxonMobil Open 2020, Estoril Open 2023, Open Sud de France 2022 - Đôi, ABN AMRO Open 2023, Winston-Salem Open 2022, ATX Open 2023

The Open Championship, Open Championship 2018, Open Your Heart, Eyes Open (bài hát), Noventi Open 2019, Office Open XML, BMW Open 2019, Open 13 2019, Canadian Open, Mutua Madrid Open 2017, Miami Open 2017, 2 on 2 Open Ice Challenge, Maharashtra Open 2022, Zug Open, Barcelona Open Banco Sabadell 2011, Chengdu Open, Open Automotive Alliance, OpenStreetMap, OpenOffice.org, Moselle Open 2021, Eyes Wide Open, Tata Open Maharashtra 2023, Open Road Films, Mutua Madrid Open 2019, Open Sud de France 2019, Rio Open 2022, Rio Open 2023, Qatar ExxonMobil Open 2019, European Open (quần vợt), European Open 2021, Halle Open 2022, European Open 2022, Maharashtra Open 2022 - Đôi, Erste Bank Open 2021, BMW Open 2019 - Đôi, Mutua Madrid Open 2018, Halle Open 2023, Libéma Open 2023, Halle Open 2021, OpenType, Miami Masters, Atlanta Open 2021, Qatar Total Open 2023, Mùa săn (phim 2006), OpenERP, Erste Bank Open 2022, Ladies Open Lausanne 2023, St. Petersburg Open 2021, Moselle Open 2022, Generali Open Kitzbühel 2021, WTA Poland Open 2021, Bad Homburg Open 2023, Watcom C/C++, Phần mềm nguồn mở, Miami Open 2019, Chile Open 2023, Swedish Open 2023, Mérida Open 2023, OpenAI, Ladies Open Lausanne 2022, Generali Open Kitzbühel 2023, With Arms Wide Open, Open Graphics Project, WTA Lyon Open 2023, Madrid Masters, Prague Open 2021, Open 13 2022, Chile Open 2021, Tel Aviv Open 2022, Liên minh thiết bị cầm tay mở, Generali Open Kitzbühel 2022, Ladies Open Lausanne 2021, BMW Open 2019 - Đơn, Open Season: Scared Silly, Stockholm Open 2021, Truy cập mở, Srpska Open 2023, ODF, Toray Pan Pacific Open 2022, Transylvania Open 2021, Tenerife Ladies Open 2021, Open Agriculture, Swedish Open 2022, Hamburg European Open 2023, Open Sud de France 2022, Qatar ExxonMobil Open 2020, Estoril Open 2023, Open Sud de France 2022 - Đôi, ABN AMRO Open 2023, Winston-Salem Open 2022, ATX Open 2023, Barcelona Open Banco Sabadell 2011 - Vòng loại đơn, Winston-Salem Open 2021, Chennai Open 2022, BMW Open 2023, Croatia Open Umag 2021, VIA OpenBook, Argentina Open 2023, Sofia Open 2021, The Phantom of the Open, Qatar ExxonMobil Open 2022, Giải quần vợt Mỹ Mở rộng, Open Arms (bài hát của Journey), Open 13 2021, Maharashtra Open 2022 - Đơn, Qatar Total Open 2021, WTA Poland Open 2022, Prague Open 2022, Barcelona Open Banco Sabadell 2019, Swiss Open Gstaad 2023, Open 13 Provence 2023, Prague Open 2023, Bad Homburg Open 2022, Andalucía Open 2021, Mutua Madrid Open 2019 - Đôi nam, Córdoba Open 2023, Croatia Open Umag 2023, Swedish Open 2021, Delray Beach Open 2022, Apache OpenOffice, BNP Paribas Open 2019, Gerry Weber Open 2018, Giải quần vợt Mỹ Mở rộng 2019, OpenStack, Libéma Open 2022, Croatia Open Umag 2022, Nottingham Open 2022, Abu Dhabi Open 2023, WTA Poland Open 2023, Quỹ Xã hội Mở, Western & Southern Open 2021, WTA German Open 2023, Hamburg European Open 2022, OpenSSL, Bad Homburg Open 2021, Qatar Total Open 2022, OpenSocial, Qatar ExxonMobil Open 2021, ATP Hong Kong Tennis Open 2025, Sáng kiến nguồn mở, Libéma Open 2022 - Đôi nữ, Courmayeur Ladies Open 2021, Swiss Open Gstaad 2021, Sardegna Open 2021, WTA Lyon Open 2022, Stockholm Open 2022, Estoril Open 2021, Córdoba Open 2022, OpenOffice.org Impress, Los Cabos Open 2023, Swiss Open Gstaad 2022