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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."

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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.

Kelechukwu Mpamaugo, a finalist in the graduate category, wore her high school prom dress.

From Los Angeles Times • Apr. 9, 2026

About 70 lavish dresses and tailored suits hang on rails, ready for this year's prom season.

From BBC • Mar. 18, 2026

At just £12.95, this prom dress costs a fraction of the price being charged at some of the area's boutiques, where outfits can go for upwards of £1,000.

From BBC • Mar. 18, 2026

Her prom dreams inch closer as her lies begin to mount and her new alabaster skin starts peeling off at extremely inopportune moments.

From Los Angeles Times • Mar. 13, 2026

“So will you go to a nontraditional prom with me?”

From "Love, Hate & Other Filters" by Samira Ahmed