FIK
FIK is an acronym that can refer to several different, unrelated entities. There is no single organization or concept universally identified by these three letters. In francophone contexts, FIK is often the initialism for Fédération Internationale de [X], the common naming pattern for international federations. Because multiple federations, institutes, and other bodies use the same construction, the exact referent of FIK varies by domain, country, and time period. In practice, FIK often appears in historical documents or shorthand notes where the full name has not been written out, or where the context makes the meaning clear to readers familiar with the specific field.
To determine what FIK stands for in a given instance, look for clarifying information in surrounding text: