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  • 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."

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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.

Some were broadly in favour, saying the town had been lucky to have free parking on the prom until now.

From BBC • May 18, 2026

Ah’Mari said he had little interest in typical high-school activities like prom or yearbook and kept his eyes on “the finish line”—his NIL deal.

From The Wall Street Journal • May 10, 2026

Once finding the right attire, students had their unofficial prom photographs taken.

From Los Angeles Times • Apr. 25, 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

Not to mention a distraction from the incessant prom talk, the bitter icing on the rotten cake of senior year.

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

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