II

• Image intensifier, medical imaging equipment • Invariant chain, a polypeptide involved in the formation and transport of MHC class II protein • Optic nerve, the second cranial nerve == Economics ==

• Income inequality, or the wealth gap, in economics • Institutional Investor (magazine), an American finance magazine ==Music==

• Supertonic, in music • ii, a 2018 song by CHVRCHES Albums • II (2 Unlimited album), 1998 • II (Aquilo album), 2018 • II (Bad Books album), 2012 • II (Boyz II Men album), 1994 • II (Capital Kings album), 2015 • II (Charade album), 2004 • II (The Common Linnets album), 2015 • II (Compact Disco album), 2011 • II (Cursed album), 2005 • II (Espers album), 2006 • II (Fuzz album), 2015 • II (Hardline album), 2002 • II (High Rise album), 1986 • II (Khun Narin album), 2016 • II (Kingston Wall album), 1993 • II (The Kinleys album), 2000 • II (Kurious album), 2009 • II (Last in Line album), 2019 • II (Lords of Black album), 2016 • II (Maylene and the Sons of Disaster album), 2007 • II (METZ album), 2015 • II (Moderat album), 2013 • II (The Presidents of the United States of America album), 1996 • II (Sahg album), 2008 • II (Seven Thorns album), 2013 • II (Unknown Mortal Orchestra album), 2013 • II (Xerath album), 2011 • II, by Krux, 2006 • II, by Majical Cloudz, 2011 • II, by Viva Brother, 2017 • II, an EP by TNGHT, 2019 • Crystal Castles II, 2010 • Led Zeppelin II, 1969 • Meat Puppets II, 1984 • Soul Assassins II, 2000 • Viva Koenji!, Koenji Hyakkei album, also known as 弐(II) • Iris II, by Iris, 1987 ==People and social groups==

• Ii is a Japanese surname, daimyō of Hikone: • Ii clan, Japanese clan (Sengoku period) • Ii Naomasa, one of four Guardians of the Tokugawa clan • Ii Naotora, female daimyō and foster mother of Naomasa • Ii Naoyuki, a Japanese author • II, drummer for the band Sleep Token • John Papa ʻĪʻī, a Hawaiian noble ==Other uses==

• ii (digraph), a digraph in certain romanized alphabets • ii (IRC client), short for IRC It, an Internet Relay Chat client for Unix-like operating systems • Ii, Finland, a municipality of Finland • Illegal immigrant (especially in Hong Kong and Macau vernacular) • Index Islamicus, a bibliography database of publications about Islam and the Muslim world • Internet Infidels, a discussion forum • IBC Airways (IATA code: II) • Yi language (ISO 639-1: ii) • Inanimate Insanity, an animated web series described as the "unofficial sister show" to Battle for Dream Island • Interactive Investor, an online investment platform in the United Kingdom.