When it comes to security protocols, the word "checkpoint requests" is a common term used to describe a request for approval or verification of access to a certain area, data, or system. However, there are several synonyms you can use to describe this term, including validation queries, access permits, clearance checks, clearance reviews, verification requests, and authorization inquiries. These synonyms may vary in context and usage, but they all essentially refer to the same process of ensuring security and safety within a certain system or setting. Whether you're writing a report about security protocols or discussing the subject with colleagues, using these synonyms can help you communicate your points with better clarity and variety.