プロムFreq.FrequencyTop 100,000Meanings1nounpromRefers to a formal dance event, typically for high school students, borrowed from American culture.高こう校こうのプロムに着きていくドレスを買かった。I bought a dress to wear to the high school prom.アメリカではプロムは卒そつ業ぎょう前まえの大おおきなイベントだ。In America, prom is a big event before graduation.