kod

Kod is a term found in several languages that denotes a code, password, or identifying sequence. In languages such as Polish and Turkish, and in various Scandinavian and Central European contexts, the word functions as a general label for codes used in computing, authentication, and data encoding. In everyday usage, phrases like PIN-kod or kod źródłowy (source code) illustrate its broad application to both security keys and software.

Etymology and cognates can be traced to the broader concept of a code or codex, with related forms in many European languages. The term often appears in technical vocabulary and has adapted to modern computing where it commonly refers to any structured sequence that conveys information or access rights.

Other uses of the term include its role as a surname or given name in some communities, and its appearance as a variable or placeholder in programming examples. Its meaning remains highly context-dependent, shifting between concrete identifiers such as product or access codes and more abstract notions of encoding and instruction in software.

See also: code, cipher, password, PIN, source code.