Dictionary.com
Thesaurus.com
Jump to:
  • prom
    prom
    noun
    a formal dance, especially one held by a high school or college class at the end of an academic year.
  • PROM
    PROM
    noun
    a memory chip whose contents can be programmed by a user or manufacturer for a specific purpose.
  • prom.
    prom.
    abbreviation
    promontory.
Synonyms

prom

1 American  
[prom] / prɒm /

noun

  1. a formal dance, especially one held by a high school or college class at the end of an academic year.


PROM 2 American  
[prom] / prɒm /

noun

Computers.
  1. a memory chip whose contents can be programmed by a user or manufacturer for a specific purpose.


prom. 3 American  

abbreviation

  1. promontory.


prom 1 British  
/ prɒm /

noun

  1. short for promenade promenade concert

  2. informal short for promenade

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

PROM 2 British  
/ prɒm /

acronym

  1. programmable read only memory

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of prom1

1890–95, short for promenade

Origin of PROM2

p(rogrammable) r(ead)-o(nly) m(emory)

Explanation

A prom is a formal dance at the end of a school year. For many American high schools, the senior prom is a big deal. Kids get dressed up and then get embarrassed by parents who take too many photos. Students going to a prom will sometimes rent limousines to get there, and dress in fancy gowns and tuxedos. The prom itself is generally a much fancier version of a school dance, often held in a hotel or a gussied-up school gymnasium. The word dates from the late nineteenth century, an American English shortening of promenade, which means "to stroll," but also "to dance in couples with joined hands."

Keep Reading on Vocabulary.com

Vocabulary lists containing prom

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The "Nerd Prom" as attendees dub it brings together hundreds of Washington journalists and media executives to raise funds for scholarships and awards.

From Barron's • Apr. 26, 2026

Saphiera Stillwell, 17, wears a prom dress, with a sticker price of $1,300, at the Positive Results Center 10th annual Prom Dress & Tux Gift-Away and Resource Fair at the Sheraton Gateway Los Angeles Hotel.

From Los Angeles Times • Apr. 25, 2026

As with the wildly successful Northern Soul Prom in 2023, this year's exploration of prog rock will be curated by BBC 6 Music DJ and former NME writer, Stuart Maconie.

From BBC • Apr. 20, 2026

I went to the Grade 11 Junior Prom with a shy, geeky boy who played the cello.

From The Wall Street Journal • Nov. 2, 2025

“Guess I can’t even get Pathetic Prom right; that’s how pathetic I am,” Dill said breezily.

From "The Serpent King" by Jeff Zentner