Sports club

A sports club, athletics club or sports association is an eclectic institution oriented to multiple sports, which fields many teams and has varied sports departments in several sports, working under the same umbrella organization. In a larger sense, it may also refer to any sports institution, even those that have only one sports team or single sports department. In order to differentiate a single sports institution from a multi-sport institution, the term multi-sport club is used. Generally, "athletics club" doesn't need that kind of disambiguation.
In general, "sports club" can also refer to any single sports team, like a football club where the only sport is football. For instance, many British soccer clubs exist like Chelsea FC, Newcastle United or Celtic FC where the only teams fielded are soccer teams. However, rare examples do exist such as Fisher Athletic (football, boxing and athletics) or Catford Wanderers (cricket, tennis, badminton). Each team from the NBA (basketball), NFL (American football) or MLS (soccer) North American sports leagues, can be also called sports clubs, but in practice, they focus solely on a single sport. On the other hand, North American varsity teams are generally organized into a structure forming a true multi-sport club belonging to an educational institution.
There are also many clubs named "FC"/"CF" (English: Football Club/Portuguese:Clube de Futebol/Spanish:Club de Fútbol), among other designations, which are effectively full multisports clubs. For example, dozens of sports clubs with this designation are found in the Iberian Peninsula like the FC Porto, Boavista FC, or CF Belenenses in Portugal, and Real Madrid CF or FC Barcelona in Spain.