There are several synonyms that can be used for the phrase "free passes". These include complimentary tickets, gratis admissions, courtesy entries, uncharged entries, and unpaid admissions. The use of these synonyms can provide variety and diversity in language when referring to such passes. For instance, a company may offer complimentary tickets to its loyal customers to attend an event. Alternatively, an organization may provide courtesy entries to donors as a way of showing appreciation. Uncharged entries and unpaid admissions can also be used interchangeably with free passes when describing the type of entry given without a fee. In summary, these synonyms can be used to offer varied ways of referring to "free passes".