The term "guest pass" refers to a document that grants temporary access or permission to an individual who is not a member or resident of a certain establishment or facility. However, if you want to spice up your vocabulary, there are other synonyms you can use instead of "guest pass." These terms include "visitor badge," "day pass," "temporary membership," "guest ticket," "access card," "invitation," and "admittance pass." Each of these synonyms possesses a subtle difference in meaning but remains a valid alternative to "guest pass." So the next time you need to write an invitation or grant someone access to your premises, try using these synonyms to make your message more interesting and diverse.