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Open, Open source, Open data, Open textbook, Open-source film, Open standard, Open-source car, The Open Championship, Open Season (film series), Open-design movement, Open collector, Open-source software, Doors Open Days, Open world, Open-source governance, Open House London, Open set, Open access, Open-source hardware, Canada Open, Open-pit mining, Open-source software movement, Open-source religion, Open science, Open plan, Australian Open, The Open Definition, Open marriage, Open-access repository, Open.Michigan, Open and closed maps, Open access in Belgium, X/Open, Open University, Open-source software development, Open list, Open House, Senior Open Championship, Taiwan Open (golf), Open-wheel car, Open Bogotá, Open-Sankoré, Open-notebook science, Open sandwich, Irish Open (golf), Open the Door, KSB Open, Chicago Open, Hybrid open-access journal, Open education, Kenya Open, Open-ended, Open gaming, Open university (concept), Philippines Open (badminton), The Open Source Definition, Open–closed principle, Open Graphics Project, Open-work charm, Phoenix Open, Garden Open, Open-source robotics, Open Firmware, Open Cycle, Open-core model, Open Barranquilla, Open house (school), Open Up, Irish Poker Open, Wuhan Open, OpenDocument, Open letter, Open-source artificial intelligence, Open-Xchange, Open-access monograph, Mizuno Open, 2007 U.S. Open (golf), Indonesia Open (golf), Open chord, Open access in France, Thailand Open (golf), Open Season, Open Access Week, Open E, Open business, Open-access mandate, Brussels Open, Western Open, Victorian Open, Open Knowledge Foundation, Open-source license, Open (sport), U.S. Open Pool Championship, North Dakota Open, Almost open map, Nursing Open, Open Door, Open architecture, Open coopetition, Open de Portugal, Women's British Open, Open-source ventilator, Open-mid vowel, Open problem, Thailand Open, The Open Ecology Journal, Business models for open-source software, Open classroom, BMJ Open, 2005 U.S. Open (golf), Open educational practices, Open constituencies, Danish Open (golf), Open de Limoges, Yomiuri Open, Biology Open, Open government, Claro Open Floridablanca, Dutch Open (golf), Korea Open (golf), Gates Open Research, Open Doors, Wide Open, Open 13, Open water swimming, List of open-source video games, Polish Open (golf), Open book, Free and open-source software, Open market operation, US Open Series, OpenBSD, Valero Texas Open, U.S. Open (golf), Open air, OpenCL, 1984 U.S. Open (golf), Open Theology, Western Australian Open, Olympia Open, 1968 US Open – Women's singles, Maharashtra Open, Open system, 2023 Open Championship, 2004 U.S. Open (golf), Open implementation, Open Medicine, 2007 US Open (tennis), Alberta Open, List of US Open singles finalists during the Open Era, Open-air museum