prom 
/ˈprɑ:m/ noun
plural proms /ˈprɑ:m/ noun [count] 1 US : a formal dance for high school students usually at the end of the school year
▪ the junior/senior prom ▪ the high school prom ▪ Are you going to the prom? — often used before another noun ▪ the prom queen ▪ prom night 2 Brit, informal : promenade concert
▪ the junior/senior prom ▪ the high school prom ▪ Are you going to the prom? — often used before another noun ▪ the prom queen ▪ prom night
