Look up second, seconds, or 2nd in Wiktionary, the free dictionary.

A second is the base unit of time in the International System of Units (SI).

Second, Seconds or 2nd may also refer to:

Mathematics

• 2 (number), as an ordinal (also written as 2nd or 2d)
• Second of arc, an angular measurement unit, 1/3600 of a degree
• Seconds (angle), units of angular measurement

Music

Film

• The 2nd (film), an American 2020 film starring Ryan Phillippe
• Seconds (1966 film), a US thriller directed by John Frankenheimer
• Seconds (2014 film), an Indian Malayalam-language thriller film by Aneesh Upasana
• "Seconds" (The Batman), an episode in the American animated TV series
• "Seconds", an episode of the American TV series Lois & Clark: The New Adventures of Superman

People

• Albéric Second, a French journalist and writer
• Second-in-command, a deputy commander in British and Commonwealth armies

Science

• Second of right ascension, in astronomy
• Specific Impulse (rocket engine)

Sports, games, and dueling

• Second (climbing), the climber who belays the lead climber in lead climbing
• Second dealing, a way of cheating in card games
• Second (chess), assistant to a chess player
• Second (curling), delivers the second set of stones in curling
• Second (duel), the agent of the participant
• Second, the cornerman in combative sports such as boxing

Other

• Second (parliamentary procedure), to formally support a motion or resolution
• Factory second, a new product sold for a discount because of minor imperfections
• Second hand or used goods, items that have been used before being resold
• Academic degree, second-class degree, divided into upper-second and lower-second, or 2.1 and 2.2, in the British undergraduate degree classification
• Educational stage in North American elementary schools
• Seconds, an interview magazine published from 1987–2000.
• Seconds (comics), a 2014 graphic novel by Bryan Lee O'Malley.

See also

• Secondment, a transfer of an employee, usually within an organization
• Segundo (disambiguation)
• SND (disambiguation)
• Secondary (disambiguation)