The term 'ATTENDEE PROM' is composed of two words: 'ATTENDEE' and 'PROM'. An ATTENDEE is someone who is present at an event, while a PROM is a formal dance or gathering usually attended by high school students. The crossword solutions for this term are 'TEEN', which is a four-letter word meaning a young person between the ages of 13 and 19. Therefore, the term 'ATTENDEE PROM' can be summarized as someone who is present at a formal dance or gathering usually attended by high school students.