Twenty or 20 may refer to: *

20 (number) 20 (twenty) is the natural number following 19 and preceding 21. A group of twenty units is sometimes referred to as a score. In mathematics Twenty is a composite number. It is also the smallest primitive abundant number. The Happy Family o ...

, 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 of the Julian calendar (the sources differ, see leap year error for further information) and a common yea ...

, AD 20,

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

2020 The year 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of even ...

Science

Calcium Calcium is a chemical element; it has 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 to it ...

, an

alkaline earth metal The alkaline earth metals are six chemical elements in group (periodic table), 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 p ...

in the

periodic table The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows (" periods") and columns (" groups"). It is an icon of chemistry and is widely used in physics and other s ...

found in bones and teeth *

20 Massalia 20 Massalia is a stony asteroid An asteroid is a minor planet—an object larger than a meteoroid that is neither a planet nor an identified comet—that orbits within the Solar System#Inner Solar System, inner Solar System or is co-orbital ...

, 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, in Europe by Roadrunner UK, and July 7, 1999, in the U.S. by MIA Records. It was reissued on March 18, 2022, by ...

'', 1999

Tours

The Twenty Tour The Twenty 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, London, consisting of 33 shows in Europe a ...

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

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

, a 2006 music concert by Filipina singer Regine Velasquez

Places

* Twenty, Lincolnshire, a hamlet in England ** Twenty railway station, a former railroad station in Lincolnshire, England * The Twenty, Georgia or West Green, an American unincorporated community in Coffee County * Twenty Lake, a lake in Minnesota * Twenty Lakes Basin, in California's eastern Sierra * The international calling code for

Egypt Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northe ...

Other uses

* 20 (TV channel), Italy * ''Twenty'' (film), a 2015 South Korean film * 20, the international dialing code for Egypt. * Tatra 20, a luxury car * Renault 20, an executive hatchback * Rover 20, various mid-sized cars * Hillman 20, a series of 20 horsepower executive cars