Twenty or 20 may refer to: *

20 (number) 20 (twenty; Roman numeral XX) is the natural number following 19 (number), 19 and preceding 21 (number), 21. A group of twenty units may also be referred to as a score. In mathematics *20 is a pronic number. *20 is a tetrahedral number as 1, ...

, the natural number following 19 and preceding 21 * one of the years

20 BC __NOTOC__ Year 20 BC was either a common year starting on Wednesday or Thursday or a leap year starting on Tuesday, Wednesday or Thursday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for ...

, AD 20,

1920 Events January * January 1 ** Polish–Soviet War in 1920: The Russian Red Army increases its troops along the Polish border from 4 divisions to 20. ** Kauniainen, completely surrounded by the city of Espoo, secedes from Espoo as its own m ...

2020 2020 was heavily defined by the COVID-19 pandemic, which led to global social and economic disruption, mass cancellations and postponements of events, worldwide lockdowns and the largest economic recession since the Great Depression in ...

Science

Calcium Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar t ...

, an

alkaline earth metal The alkaline earth metals are six chemical elements in group 2 of the periodic table. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).. The elements have very similar properties: they are ...

in the

periodic table The periodic table, also known as the periodic table of the (chemical) elements, is a rows and columns arrangement of the chemical elements. It is widely used in chemistry, physics, and other sciences, and is generally seen as an icon of ...

found in bones and teeth *

20 Massalia Massalia, minor planet designation 20 Massalia, is a stony asteroid and the parent body of the Massalia family located in the inner region of the asteroid belt, approximately in diameter. Discovered by Italian astronomer Annibale de Gasparis on ...

, an asteroid in the asteroid belt

Music

Albums

* ''20'' (2nd Chapter of Acts album), 1992 * ''20'' (Cunter album), 2011 * ''20'' (Dragana Mirković album), 2012 * ''20'' (Harry Connick, Jr. album), 1988 * ''20'' (Jan Smit album), 2016 * ''20'' (Kate Rusby album), 2012 * ''20'' (Terminaator album), 2007 * ''20'' (TLC album), 2013 * ''20'' (No Angels album), 2021 * ''#20'' (Edmond Leung album), 2011 * ''20th'' (album), by Casiopea, 2000 * ''20 wenty', an album released in Japan by South Korean rock band F.T. Island, 2012 * ''Twenty'' (Boyz II Men album), 2011 * ''Twenty'' (Chicane album), 2016 * ''Twenty'' (Jebediah album), 2015 * ''Twenty'' (Lynyrd Skynyrd album), 1997 * ''Twenty'' (Robert Cray album), 2005 * ''Twenty'' (Taking Back Sunday album), 2019

Songs

* "Twenty" (The Rippingtons song) from ''20th Anniversary'', 2006 * "Twenty", a song by Karma to Burn from the album ''

Wild, Wonderful Purgatory ''Wild, Wonderful Purgatory'' is the second studio album by stoner rock band Karma to Burn. The album was released on May 31, 1999 (Europe) by Roadrunner UK, and July 7, 1999 (North America) by MIA Records. The album was reissued on March 18, 2 ...

'', 1999

Tours

The Twenty Tour The Twenty Tour (also known as the 20th Anniversary Tour) was the thirteenth concert tour by Irish pop vocal group, Westlife. It began on 22 May 2019 in Belfast, Northern Ireland at the SSE Arena and concluded on 15 September 2019 in Hyde Park, ...

, a 2019 music concert tour by Irish pop vocal band Westlife *

Twenty (concert) Twenty (also stylized as 20) was an arena concert by Filipina entertainer Regine Velasquez. The concert was announced in September 2006 and held on two consecutive nights in October at the Araneta Coliseum in Quezon City. Its concept and name i ...

, a 2006 music concert by Filipina singer Regine Velasquez

Places

Twenty, Lincolnshire Twenty is a hamlet in the South Kesteven district of Lincolnshire, England. It is situated approximately east from the market town of Bourne, and west from Spalding. Agriculture is the major industry. Location Twenty is situated on the A15 ...

, a hamlet in England **

Twenty railway station Twenty railway station served the village of Twenty in Lincolnshire, England. It was on the route of the Spalding and Bourne Railway (opened 1866), later part of the Midland and Eastern Railway and then part of the Midland and Great Norther ...

, a former railroad station in Lincolnshire, England *

The Twenty, Georgia West Green is an unincorporated community in Coffee County, Georgia, United States. West Green is located along U.S. Route 221 northeast of Douglas and southwest of Lehigh near the Coffee-Jeff Davis County Line. The ZIP Code for West Green is ...

or West Green, an American unincorporated community in Coffee County *

Twenty Lake Twenty Lake is a lake in Aitkin County, Minnesota, in the United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consis ...

, a lake in Minnesota *

Twenty Lakes Basin Twenty Lakes Basin is located in California's eastern Sierra, east of Yosemite National Park Yosemite National Park ( ) is an American national park in California, surrounded on the southeast by Sierra National Forest and on the northwest ...

, in California's eastern Sierra

Other uses

20 (TV channel) 20 is an Italian free-to-air television channel, operated by Mediaset and owned by MFE - MediaForEurope. It was founded and started to broadcast in 2018. History Following the acquisition of channel 20 from the Television Broadcasting System G ...

, Italy * ''Twenty'' (film), a 2015 South Korean film * 20, the international dialing code for Egypt.