The word "intraclub" could be substituted by several synonyms, depending on the context. For instance, if it refers to an exclusive group, "private club" or "members-only club" could be used instead. Alternatively, if the term denotes a competition among different teams within the same club, "intramural" or "inter-team" could be suitable synonyms. Another possible substitute for the term would be "in-house," which implies that a specific service or activity is being provided or carried out within a particular organization or club. Ultimately, the choice of synonym would depend on the intended meaning and the situation in which the word is being used.