IF (Sports) - IF

Japanese: IF（スポーツ） - あいえふ

…An international multi-sport event organized by the International Olympic Committee (IOC). National Olympic Committees (NOCs) from each country (including regions) participate, and the sports are managed by their respective international sport federations (IFs). The first Games were held in Athens, Greece in 1896, and have been held every four years since then.

From the International Sports Federation:

…A general term for international organizations of various sports. Abbreviated as ISF or IF. For example, the International Association of Athletics Federations and the International Ski Federation are organizations that regulate each sport internationally. …

*Some of the terminology that mentions "IF (Sports)" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…国際オリンピック委員会International Olympic Committee(略称IOC)が主催する国際総合スポーツ大会。各国(地域を含む)のオリンピック委員会National Olympic Committee(略称NOC)が参加し，競技はそれぞれの国際競技連盟International Sport Federation(略称IF)が管理する。1896年ギリシアのアテネで第1回大会が行われ，以後4年に1度開催される。…