Gain

Gain or GAIN may refer to:

Electronics and computing

• Gain (electronics), a measure of the ability to increase the power or amplitude of a signal
• Gain (antenna), a key performance parameter which combines the antenna's directivity and radiation efficiency
• Gain (laser), the amplification of optical power involved in laser emission
• Gain (projection screens), a measure of brightness
• Information gain (decision tree), in mathematics and computer science
• Gain, the term in adaptive control literature for learning rate, a step size tuning parameter in optimization algorithms

Biology and health

• GAIN domain (G-protein-coupled receptor autoproteolysis-inducing domain)
• Primary and secondary gain, psychological mechanisms that may underlie an illness
• Global Appraisal of Individual Needs, a set of psychological assessment instruments
• Global Alliance for Improved Nutrition, a Swiss non-profit foundation working in the field of malnutrition
• Generating Antibiotic Incentives Now, Title VIII of the United States's Food and Drug Administration Safety and Innovation Act of 2012

Arts

• Gain (singer) (Son Ga-in, Korean: 손가인/孫佳人; born 1987), a South Korean entertainer
• Gain (novel), 1998, by American author Richard Powers, about Clare International and Laura Bodey
• Gain (EP), 2009, by Japanese band Sadie

Economics and finance

• Gain (accounting), an increase in market value relative to purchase price of an asset
• GAIN Capital Holdings, Inc. (founded 1999, acquired 2020), a US-based trading company specializing in foreign exchange (forex)
• Greater Avenues to Independence program, the California implementation of Aid to Families with Dependent Children (AFDC), and a precursor to CalWORKs

Other uses

• Gain (surname), anglicised form of Gayen (Bengali: গায়েন)
• Bob Gain (1929–2016), an American professional football player
• Charles Gain (1923–2018), an American police official
• Peter Gain (born 1976), a British former professional footballer
• Gain (detergent), a Procter & Gamble brand

See also

• Gein (disambiguation)
• Gayn (disambiguation)
• Gane, a name
• Gian, a name
• All pages with titles beginning with Gain ; terms unrelated to those mentioned above include:
  • Gainer (disambiguation), names and terms
  • Gain of function (disambiguation), medical terms
  • Gaina (disambiguation), people and more
  • Gainsborough (disambiguation), places, people, and more
  • Gaines (disambiguation), places and people
  • Gainford (disambiguation), places
  • Gainesville (disambiguation), places in the United States
  • Gainneville, a commune in France
  • Gain Glacier, in the Kvinge Peninsula on Antarctica
  • Gain Creek, a river in Canada
  • GainJet, a Greek charter airline
  • GainSpan, a Wi-Fi technology company
  • Gain-field encoding, in neuroscience
  • Gain Ground, a 1988 action arcade video game by Sega
  • Gain-ground, a type of sport
  • Gain line, in rugby union
  • "Gain Clout", a song from Slime Language by YSL Records and Young Thug, 2018
  • Gain stage, in audio engineering
  • Gain scheduling, in control theory
  • Gain graph, a type of mathematical structure
• Fusion energy gain factor
• Weight gain, an increase in human body mass