NSU can be a difficult word to come up with synonyms for, as it is an acronym for multiple things such as "Non-Specific Urethritis," "Northeastern State University," and "National Space University." However, one could substitute different variations of the words or phrases that make up the acronym. For example, Non-Specific Urethritis could be substituted with phrases such as "unclassified inflammation of the urethra" or "indiscriminate urethral irritation." Northeastern State University could be substituted with other regional universities or colleges such as "Southeastern Oklahoma State University" or "Western Connecticut State University." Similarly, National Space University could be substituted with other space institutes or universities such as "Ames Research Center" or "International Space University".