Southern Command Network, the American Forces Network radio and TV affiliates broadcasting to U.S. troops stationed in Panama and/or the former Panama Canal Zone.

South American Community of Nations, a free trade zone in South America

Suprachiasmatic nucleus (or nuclei), a part of the hypothalamus in the brain

Soybean cyst nematode

Supreme Court of Nigeria

Saskatchewan Communications Network, Canadian regional educational television channel owned by the provincial government of Saskatchewan.

Thiocyanate, an organic compound in the cyanate family.

Saarbrücken Airport, IATA airport code

The SIL code of Sicilian language