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  • rum
    rum
    noun
    an alcoholic liquor or spirit distilled from molasses or some other fermented sugar-cane product.
  • Rum
    Rum
    noun
    Arabic name of Rome, once used to designate the Byzantine Empire.
  • Rum.
    Rum.
    abbreviation
    Rumania. See Romania.
Synonyms

rum

1 American  
[ruhm] / rʌm /

noun

  1. an alcoholic liquor or spirit distilled from molasses or some other fermented sugar-cane product.

  2. alcoholic drink in general; intoxicating liquor.

    He warned against the demon rum.


rum 2 American  
[ruhm] / rʌm /

adjective

Chiefly British Informal.
  1. odd, strange, or queer.

    a rum fellow.

  2. problematic; difficult; bad.

    a rum situation.


rum 3 American  
[ruhm] / rʌm /

noun

Cards.
  1. rummy.


Rum 4 American  
[room] / rum /

noun

  1. Arabic name of Rome, once used to designate the Byzantine Empire.


Rum. 5 American  

abbreviation

  1. Rumania. See Romania.

  2. Rumanian. See Romanian. Also Rum


rum 1 British  
/ rʌm /

noun

  1. spirit made from sugar cane, either coloured brownish-red by the addition of caramel or by maturation in oak containers, or left white

"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

rum 2 British  
/ rʌm /

adjective

  1. slang strange; peculiar; odd

"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

rum 3 British  
/ rʌm /

noun

  1. short for rummy 1

"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

Etymology

Origin of rum1

First recorded in 1645–55; perhaps short for obsolete rumbullion, rumbustion, of obscure origin

Origin of rum2

First recorded in 1750–60; earlier rome, room “great,” of uncertain origin; perhaps from Romani; see Rom

Origin of rum3

An Americanism dating back to 1870–75; by shortening

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.

I Am Maximus, ridden by Paul Townend, went into the race 9-2 favourite after significant late support by punters and became the first horse since Red Rum in 1977 to regain the Grand National.

From BBC • Apr. 11, 2026

Meanwhile for those in search of a real doer-upper there is the £750,000 Kinloch Castle on the Isle of Rum which it has been estimated could cost millions to restore.

From BBC • Mar. 28, 2026

At the Pirates’ fan site Rum Bunter, Emma Lingan wrote: “Fandom isn’t a streaming subscription you cancel when the content gets bad.”

From Los Angeles Times • Dec. 22, 2025

Josh Friedman is the chief executive of Dr. Squatch, a maker of products like Bay Rum soap and Pine Tar “Odor Squatching” deodorant, which was acquired by Unilever this year.

From The Wall Street Journal • Nov. 27, 2025

When Root approached her, Elizebeth already knew that the Rum War was no joke.

From "The Woman All Spies Fear" by Amy Butler Greenfield

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