Open
Open source
Open data
Open textbook
Open-source film
Open standard
Open-design movement
Open-source car
Open Season (film series)
Open collector
The Open Championship
Open-source governance
Open-pit mining
Doors Open Days
Open-source software movement
Canada Open
Open-source hardware
Open world
Open House London
Open-source software
Open set
Open access
Open-source religion
The Open Definition
Open marriage
Open plan
Open university (concept)
Australian Open
Open-access repository
Taiwan Open (golf)
Open.Michigan
Open science
KSB Open
Open gaming
Irish Open (golf)
Open-Sankoré
Open list
Open access in Belgium
Open and closed maps
Chicago Open
X/Open
Open education
Kenya Open
Open-notebook science
Senior Open Championship
Open-source software development
Open House
Hybrid open-access journal
Open University
Open Graphics Project
Open-source robotics
Open-work charm
Open sandwich
Open-wheel car
Garden Open
Irish Poker Open
Mizuno Open
Open–closed principle
Open-ended
Wuhan Open
Open-access monograph
Victorian Open
Open the Door
Indonesia Open (golf)
Open Firmware
The Open Source Definition
OpenDocument
Phoenix Open
Open Bogotá
Open-core model
Open classroom
Open Knowledge Foundation
Open problem
Open Access Week
Open letter
Open-mid vowel
Thailand Open (golf)
Open E
Cincinnati Open
Western Open
Open chord
Free and open-source software
Open house (school)
Open access in France
Open-source license
Open Cycle
Thailand Open
Open-Xchange
2007 U.S. Open (golf)
The Open Ecology Journal
Open Season
Claro Open Floridablanca
Open-access mandate
Brussels Open
North Dakota Open
Business models for open-source software
Open space reserve
Open business
Open de Portugal
Nursing Open
Open Door
Dallas Open
Taipei Open (badminton)
Swedish Open
US Open Series
U.S. Open Pool Championship
Open architecture
Alberta Open
Polish Open (golf)
Open government
Open-container law
Open system
Wide Open
List of U.S. Open pool championships
Danish Open (golf)
Open Up
2023 Open Championship
Open book
BMJ Open
Women's British Open
International Open Series
Busan Open
Korea Open (golf)
List of open-source video games
Gates Open Research
Open constituencies
Open educational practices
Open Fire
Open space
Open-source ventilator
Valero Texas Open
US Open (tennis)
Moselle Open
Biology Open
Open de Limoges
2005 European Judo Open Championships
Hylo Open
1979 U.S. Open (golf)
Heritage Open Days
2007 US Open (tennis)
Maharashtra Open
Poznań Open
Zimbabwe Open
OpenCL
Open Doors
Open-air museum
Yomiuri Open
Open 13
2005 U.S. Open (golf)
OpenBSD
Open air
Open proxy
Western Australian Open
U.S. Open (bowling)
Open heart
Danish Open (tennis)
Lusaka Open
Open Medicine
2004 U.S. Open (golf)
List of US Open singles finalists during the Open Era
Almost open map
Open-field
Haninge Ladies Open
Italian Open (golf)
Open music
Open access in Denmark
U.S. Open (golf)
Canadian Open (golf)
2007 Qatar Open
Open research
2017 Shenzhen Open – Singles
1984 U.S. Open (golf)
Open Cascade Technology
Open Quaternary
Sreenarayanaguru Open University
Open defecation
2004 European Judo Open Championships
Open Theology
Near-open central vowel
Open-source artificial intelligence
Open market operation
Open University of the Netherlands
Open-source video game
British Open Squash Championships
Nottingham Open
The Open Group
The Hague Open
Zambia Open
Open end
List of Australian Open singles finalists during the Open Era
Open mic
1968 US Open – Women's singles
Open access in Ukraine
Bronx Open
Open Orthodoxy
Open source in Kosovo
India Open
Open implementation
2017 Shenzhen Open – Doubles
Open Mathematics

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