SL may refer to:
Slovakia ( (listen); Slovak: Slovensko [ˈslɔʋɛnskɔ] (listen)), officially the Slovak Republic (Slovak: Slovenská republika, listen ), is a landlocked country in Central Europe.
Slovenia ( (listen) sloh-VEE-nee-ə; Slovene: Slovenija [slɔˈʋèːnija]), officially the Republic of Slovenia (Slovene: Republika Slovenija , abbr.: RS), is a country located in southern Central Europe at a crossroads of important European cultural and trade routes.
Slavery is any system in which principles of property law are applied to people, allowing individuals to own, buy and sell other individuals, as a de jure form of property.
Sleep is a naturally recurring state of mind and body, characterized by altered consciousness, relatively inhibited sensory activity, reduced muscle activity and inhibition of nearly all voluntary muscles during rapid eye movement (REM) sleep, and reduced interactions with surroundings.
The slash is an oblique slanting line punctuation mark. Once used to mark periods and commas, the slash is now most often used to represent exclusive or inclusive or, division and fractions, and as a date separator.
A slot machine (American English), known variously as a fruit machine (British English, except Scotland), puggy (Scottish English), the slots (Canadian and American English), poker machine/pokies (Australian English and New Zealand English), or simply slot (British English and American English), is a casino gambling machine that creates a game of chance for its customers.