Translation guide
A prom is a formal dance, usually for high school students, especially in the US. In Japan, there is no direct equivalent, so you need to describe it or use the loanword.
Referring to the prom as a school dance event
The loanword 'prom' is widely understood among younger Japanese people familiar with American culture. Use this in casual conversation.
I'm looking forward to the prom next week.
A descriptive phrase meaning 'graduation dance party'. It clarifies the nature of the event for those unfamiliar with the term 'prom'.
In American high schools, the prom is a big event.
A simpler description: 'high school dance party'. Good for explaining to someone who doesn't know the term.
I haven't decided what to wear to the prom yet.
Talking about attending the prom
The most natural way to say 'go to prom' using the loanword.
Are you planning to go to prom this year?
More formal: 'participate in the graduation dance party'.
Referring to the person you go to prom with
Talking about what to wear to prom
Since prom is not a Japanese tradition, you may need to briefly explain what it is when talking to someone unfamiliar with American school events. You can say: 「アメリカの高校で行われる、卒業前のフォーマルなダンスパーティーのことです。」 (It's a formal dance party held before graduation at American high schools.)
Many students attend the prom.