All articles starting with O
9,097 articles
ONHELL
ONHELL is the performing name of Angel Rubio-Hale, a Los Angeles-based experimental bass and dubstep producer and DJ who has toured with Zeds Dead and Truth since his 2013 debut.
Oni (video game)
Oni is a third-person action game released in January 2001 for Windows, Macintosh, and PlayStation 2 by Bungie West, Bungie's satellite studio, combining shooting with anime-inspired hand-to-hand combat.
Oni (鬼)
Oni (鬼) are Japanese supernatural beings understood as ancestral spirits, epidemic demons, and objects of worship; tied to the court tsuina rite, Setsubun bean-throwing, Noh hannya, and the Wamyōshō 'hidden' etymology.
Oni Press
Oni Press, founded 1997 by Joe Nozemack and Bob Schreck in Portland, Oregon, is an independent comic and graphic novel publisher known for Scott Pilgrim and Gender Queer; since a 2019 merger with Lion Forge it operates as the Oni-Lion Forge Publishing Group under Polarity.
Onia
Onia: Latin and historical name of Oña, Burgos, Spain, an ancient place (BAtlas 14 G1) and site of the Benedictine monastery of San Salvador founded 1011 by Sancho García; also Jewish high priests Onias and an Arkansas hamlet.
OniAi
OniAi (お兄ちゃんだけど愛さえあれば関係ないよねっ) is a 12-volume harem romantic-comedy light novel by Daisuke Suzuki, adapted into a 2012 SILVER LINK. anime about twins Akito and Akiko Himenokōji living together.
Onias IV
Onias IV was the son of Onias III, the last Zadokite high priest of Jerusalem, who fled to Egypt and, per Josephus, founded the temple at Leontopolis.
Onibaba (鬼婆) (film)
Onibaba (鬼婆) is Kaneto Shindo's 1964 black-and-white Japanese horror film about a woman and her daughter-in-law killing samurai in reed marshes during fourteenth-century civil war, based on a Buddhist fable, with a hannya demon mask, Kiyomi Kuroda's cinematography, and Hikaru Hayashi's percussive score.
Onida Electronics
Onida Electronics is an Indian consumer electronics and home appliances brand founded in 1981 as a color television maker, known for its 'Neighbour's envy, owner's pride' campaign.
Onigiri (おにぎり)
Onigiri (おにぎり), also omusubi, is the Japanese hand-pressed rice ball, typically triangular, salted, nori-wrapped, and filled with umeboshi, salmon, or tuna mayo; a staple of bento and convenience stores with a history from Yayoi-era carbonized rice to the 1978 film-packaging era.
Onikişubat
Onikişubat ("12 February") is a district of Kahramanmaraş Province, Turkey, created in 2012 by Law No. 6360 when the central district split into Onikişubat and Dulkadiroğlu; named for the 12 February 1920 liberation, population 447,591 (2025).
Onimusha (鬼武者)
Onimusha (鬼武者) is Capcom's swordplay action game series of Oni-powered warriors fighting the demonic Genma, launched in 2001 with Warlords, totaling 7.9 million sales by 2011, and revived in 2026 with Way of the Sword starring Miyamoto Musashi.
Onimusha: Warlords
Onimusha: Warlords is a 2001 survival horror action-adventure game by Capcom for the PlayStation 2, in which the samurai Samanosuke Akechi rescues Princess Yuki from demons.
Onimusha: Way of the Sword
Onimusha: Way of the Sword (鬼武者 Way of the Sword) is Capcom's 2026 swordplay action game, the first new Onimusha in over 20 years, starring Miyamoto Musashi fighting Genma in early Edo-period Kyoto on PS5, Xbox Series X|S, and PC.
Ōnin ki
Ōnin ki (応仁記) is a Japanese war chronicle of the Muromachi period narrating the Ōnin War of 1467 to 1477, from its causes to the commanders' deaths in 1473.
Ōnin War (応仁の乱)
Ōnin War (応仁の乱, Ōnin no Ran), 1467–1477 Japanese civil war in Kyoto between Hosokawa Katsumoto and Yamana Sōzen over Ashikaga shogunal succession; destroyed Kyoto, broke shugo power, and began the Sengoku Warring States period.
Oninaki (鬼ノ哭ク邦)
Oninaki (鬼ノ哭ク邦) is a 2019 action RPG by Tokyo RPG Factory and Square Enix, its third game and first action title, following Watcher Kagachi through Daemon-based hack-and-slash combat; Metascore 69.
ONIOM
ONIOM is a multiscale quantum chemistry method that treats a molecule's active region accurately and its surroundings cheaply, introduced by Mats Svensson and colleagues in 1996.
Onion
Onion (Allium cepa), bulb crop of the amaryllis family from central Asia, cultivated over 4,700 years; bulbing is day-length controlled; second only to tomato in global production.
Onion dome
An onion dome, in Russian called луковичная глава, is a bulbous dome tapering to a point, first widely used in Islamic architecture and characteristic of Russian churches.
Onion downy mildew
Onion downy mildew is a devastating disease of Allium crops such as onion, garlic, and leek, caused by the oomycete Peronospora destructor, which can cut yields by 25 to 75 percent.
Onion extract
Onion extract (Allium cepa L. bulb extract), a water extract of food-grade onion bulbs approved as an EU basic substance in 2021 for fungicide use in potatoes, tomatoes, and cucumbers; distinct from onion oil (repellent) and onion peel extract (antioxidant preservative candidate).
Onion Futures Act
Onion Futures Act, Public Law 85-839 (7 U.S.C. 13-1), the 1958 U.S. law signed by Eisenhower banning onion futures trading on any U.S. board of trade; the only such statutory commodity futures ban, prompted by the Kosuga-Siegel market corner.
Onion Omega2
The Onion Omega2 is a small Linux computer module for IoT development, sold by Onion of Boston and funded through a 2016 Kickstarter campaign with over 16,000 backers.
Onion Portage Archeological District
Onion Portage Archeological District (Paatitaaq) is a National Historic Landmark on the Kobuk River in Kobuk Valley National Park, Alaska, with over 70 cultural layers spanning about 10,000 years, from the Akmak complex to Arctic Woodland Eskimo, and continuing subsistence caribou hunting.
Onion routing
Onion routing is a technique for anonymous communication that wraps messages in layers of encryption, relayed through nodes so no single one knows both sender and destination.
Onirama
Onirama (ΟΝΙΡΑΜΑ) was a Greek pop-rock band formed in Thessaloniki in 2000 and fronted by Thodoris Marantinis, best known for its gold 2008 album Klepsydra before disbanding in 2026 after 25 years.
Onisifor Ghibu
Onisifor Ghibu (1883–1972) was a Romanian pedagogue and professor of pedagogy at the University of Cluj who organized Transylvanian schooling and helped bring Bessarabia into Romania in 1918.
Onision
Onision is the YouTube alias of James Jackson (born Gregory James Daniel), an American creator active since 2006 known for sketches, the Banana Song, and body-image content, later central to 2019 grooming allegations, Chris Hansen's investigation, 2021 demonetization, and ongoing federal civil litigation.
Onitsha
Onitsha is a port city on the eastern bank of the Niger River in Anambra State, Nigeria, home to the Onitsha Main Market, the largest market in Nigeria.