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Synonyms

jumbo

American  
[juhm-boh] / ˈdʒʌm boʊ /

noun

  • jumbos
    plural
  1. a very large person, animal, or thing.

  2. jumbo jet.

  3. U.S. Nautical.

    1. a forestaysail having a boom jumbo boom along its foot, used especially on schooners.

    2. a sail used in place of a course on a square-rigged ship, having the form of an isosceles triangle set apex downward.

    3. a narrow triangular sail set point downward in place of a foresail on a topsail schooner.


adjective

  1. very large.

    the jumbo box of cereal.

jumbo British  
/ ˈdʒʌmbəʊ /

noun

  1. informal

    1. a very large person or thing

    2. ( as modifier )

      a jumbo box of detergent

  2. See jumbo jet

"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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of jumbo

First recorded in 1800–10; origin uncertain; popularized as the name of a large elephant purchased and exhibited by P.T. Barnum in 1882

Explanation

Something that's jumbo is extra large. Your jumbo television might look funny in your tiny apartment. Jumbo is an informal adjective that describes anything enormous. You might spy the word on a menu at a seafood restaurant that serves "jumbo shrimp," or hear it when you're boarding a massive "jumbo jet." The word comes from a famous elephant, Jumbo, known for being the largest in captivity in the 1800s, and purchased from the London Zoo by circus owner P.T. Barnum in 1882.

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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.

See Examples For:

The 30-year mortgage rate for jumbo loans — mortgages that exceed conforming balances of $832,750 — also rose to 6.72%, up 2 basis points from a week prior.

From MarketWatch Aug. 5, 2026

The luxury jumbo jet was modified to transport the president and included upgrades in security, mission communications, logistics support, and advanced technology, the Air Force said.

From BBC Jul. 11, 2026

Venice Ramen is good too, and they do these things called jumbo gyoza that are absolutely delicious.

From Los Angeles Times Jul. 3, 2026

Brownback also likes the nonagency MBS market, which includes the jumbo home loans too large for Fannie and Freddie to package into securities.

From Barron's Jun. 26, 2026

You could have driven a jumbo jet through the opening, maybe even two.

From "City of the Plague God" by Sarwat Chadda

Rakesh Reddy told AFP that seven jumbos were killed, and one elephant sustained an injury.

From Barron's Dec. 20, 2025

An average of 158 people per flight, plus security, would require the equivalent of five jumbos to be available all year around.

From BBC Aug. 26, 2025

It will hold 25% more volume than Boeing’s existing freighter and is emerging as an heir to the plane-maker’s humpbacked 747 jumbos that have hauled goods across the North Pacific for decades.

From Seattle Times Oct. 13, 2021

Lewinsky told her official biographer that Tripp had the jumbos because she wanted to appear loyal to the administration.

From Slate Sep. 18, 2018

All my cousins would gather in the courtyard between my house and Geoffrey’s house to kick the soccer ball—made from plastic shopping bags we called jumbos, which we then bound in twine.

From "The Boy Who Harnessed the Wind" by William Kamkwamba

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