Long Island University is a private university system with three campuses located in New York State. The main campus is located in Brookville, and two additional campuses are located in Garden City and Riverhead. Adelph, Hofstra, and Adelphi are all part of the Long Island University system. Adelph is the six-letter solution to the crossword and is the name of the main campus located in Brookville. Hofstra is the seven-letter solution to the crossword and is the name of the campus located in Garden City. Adelphi is the seven-letter solution to the crossword and is the name of the campus located in Riverhead.