On, a priest in the Bible (Genesis 41:45), referring to "Poti-phera, priest of On" (where On may refer to Heliopolis or an Egyptian deity)

Ontology, a branch of philosophy that deals with the concept of being (on)

Genesis summary and related information.

"On", "being" in ancient Greek

ON can stand for spontaneous osteonecrosis, resulting from a loss of blood supply to bone tissue

On, a transliteration of the Egyptian name of the city of Heliopolis

On (EP), a song and single album by Aphex Twin

ON (game designer), a Flash game designer and creator of the eyezmaze website and the Grow game series

Overground Network, a railway scheme in South London

Japanese writing Kanji Kana Hiragana Katakana Hentaigana Man'yōgana Uses Furigana Okurigana Rōmaji The sokuon (促音, sokuon?) is a Japanese symbol consisting of a small hiragana or katakana tsu. In less academic language it is called chiisai tsu...

Yōon or Youon (拗音: literally contracted word or diphthong) is a feature of the Japanese language in which a mora is formed with an added y sound. Yōon are represented in hiragana using a kana ending in i, such as き (ki), plus a...

Japanese writing Kanji Kana Hiragana Katakana Hentaigana Man'yōgana Uses Furigana Okurigana Rōmaji The chōonpu (長音符, chōonpu ?) or bōsen (棒線, bōsen?) mark is a Japanese symbol which is used to indicate a long vowel, especially in...

On, a musical project by Ken Andrews of Failure

ON (album), an album by Gary Glitter

ON, the postnomial abbreviation used by members of the Jamaican Order of the Nation

On, a Japanese word related to the English "syllable"; see Onji

On, a 2002 album by Imperial Teen

ON Semiconductor, a leading supplier of power management solutions

A switching state, contrasted with off

Ontario (Canadian Province/Territory Code)

ONdigital, a failed British digital television service

Air Nauru (IATA airline designator)

Leg side, in the game of cricket

ON is the post nomial representing an Old Nottinghamian (a person who attended or worked at Nottingham High School)

Osteonectin, a glycoprotein