Open Tennis Championships, commonly called the US Open, is a hardcourt tennis tournament held annually in Queens, New York. Since 1987, the US Open has...

Free and open-source software (FOSS) is software that is available under a license that grants the right to use, modify, and distribute the software, modified...

OpenAI is an American artificial intelligence (AI) research organization founded in December 2015, researching artificial intelligence with the goal of...

tennis events held each year, preceding the French Open, Wimbledon and the US Open. The Australian Open starts in the middle of January and continues for...

Open collaboration is any "system of innovation or production that relies on goal-oriented yet loosely coordinated participants who interact to create...

Look up open in Wiktionary, the free dictionary. Open or OPEN may refer to: Open (band), Australian pop/rock band The Open (band), English indie rock band...

Open-source software (OSS) is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change...

The Open Championship, often referred to as The Open or the British Open, is the oldest golf tournament in the world, and one of the most prestigious....

The Garden Open (formerly known as Roma Open and Rai Open) is a professional tennis tournament played on outdoor red clay courts. It is currently part...

Roland-Garros (French: [ʁɔlɑ̃ ɡaʁos]), colloquially referred to as the French Open (French: Internationaux de France de tennis) in anglophone countries, is...

Open access (OA) is a set of principles and a range of practices through which research outputs are distributed online, free of access charges or other...

The Open Clarins is a WTA Tour affiliated tennis tournament played from 1987 to 1992. It was held in the Paris in France and played on the outdoor clay...

An open relationship is an intimate relationship that is sexually non-monogamous. An open relationship generally indicates a relationship where there is...

product. The open-source model is a decentralized software development model that encourages open collaboration. A main principle of open-source software...

The Geneva Open is an ATP Tour (formerly Grand Prix) affiliated tennis tournament that was held annually from 1980 to 1991 in Geneva, Switzerland on clay...

"Open sesame" (French: Sésame, ouvre-toi; Arabic: افتح يا سمسم, romanized: iftaḥ yā simsim) is a magical phrase in the story of "Ali Baba and the Forty...

An open prison or open jail is any jail in which the prisoners are trusted to complete sentences with minimal supervision and perimeter security and are...

Open education is an educational movement founded on openness, with connections to other educational movements such as critical pedagogy, and with an...

that is more open than a mid vowel. That is, open-mid vowels, near-open vowels, and open vowels can all be considered low vowels. The open vowels with...

Open admissions, or open enrollment, is a type of unselective and noncompetitive college admissions process in the United States in which the only criterion...

In video games, an open world is a virtual world in which the player can approach objectives freely, as opposed to a world with more linear and structured...

The United States Open Championship, commonly known as the U.S. Open, is the annual open national championship of golf in the United States. It is the...

specifications, open education, open educational resources, open government, open knowledge, open access, open science, and the open web. The growth of the open data...

Open interest (also known as open contracts or open commitments) refers to the total number of outstanding derivative contracts that have not been settled...

The Stuttgart Open (sponsored since 2022 by Hugo Boss and called the BOSS Open) is an ATP Tour 250 series professional tennis tournament on the ATP Tour...

Open o or turned c (majuscule: Ɔ, minuscule: ɔ) is a letter of the extended Latin alphabet. In the International Phonetic Alphabet, it represents the open-mid...

An open standard is a standard that is openly accessible and usable by anyone. It is also a common prerequisite that open standards use an open license...

A cold open (also called a teaser sequence) is a narrative technique used in television and films. It is the practice of jumping directly into a story...

The Vienna Open (currently sponsored by Erste Bank and called the Erste Bank Open) is a professional tennis tournament played on indoor hard courts. Originally...

OpenBSD is a security-focused, free and open-source, Unix-like operating system based on the Berkeley Software Distribution (BSD). Theo de Raadt created...