sk

Sk, or sk, is a two-letter string used as an abbreviation or code in several independent systems. Its meaning depends on context, spanning language codes, national identifiers, geography, business, and computing.

In language tagging, sk is the ISO 639-1 code for Slovak, the official language of Slovakia. This code appears in language tags and localization metadata to designate Slovak text or content.

In country and domain codes, SK denotes Slovakia in ISO 3166-1 alpha-2 and is used for Slovakia’s internet country code top-level domain, .sk. The same two letters also appear on international vehicle registration plates for Slovakia. Additionally, Saskatchewan, a Canadian province, uses SK as its postal abbreviation.

In business, SK Group is a major South Korean conglomerate commonly shortened to SK. The group operates across energy, chemicals, and telecommunications, with well-known subsidiaries such as SK Telecom and SK hynix.

In computing, sk is sometimes used as shorthand for socket in networking and systems programming. In Linux kernel code, for example, a data structure representing a network connection is commonly named struct sock and abbreviated sk in source files.

Overall, sk is a versatile code used across different fields. Its precise meaning is determined by the surrounding domain, whether language, geography, corporate branding, or technical documentation.