Look up in Wiktionary, the free dictionary.sine |

**Sine** is a trigonometric function.

**Sine** may also refer to:

- Maurice Sinet or Siné (1928–2016), a French cartoonist
- Sine FM, a community radio station based in Doncaster, South Yorkshire
- Short interspersed nuclear elements (SINEs), a short DNA sequences in eukaryote genomes
- Sine bar
*Sine*(album), a 2008 album by C418

## Mathematics

- Abbe sine condition
- Discrete sine transform
- Sine wave, a mathematical function
- Sine and cosine transforms
- Sine quadrant
- Sine-Gordon equation

## Places

- Sinë, village in Albania
- Sine, Washington, a community in the United States
- Kingdom of Sine, a former kingdom in modern Senegal

## See also

- SINE (disambiguation)
- Port of Sines, a deep-water port in Portugal
- Sines Municipality, a city and municipality in Portugal
- Sinoatrial node
*Sine qua non*- Sign (disambiguation)