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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.

Sazerac, whose brands include Fireball Cinnamon Whisky, Buffalo Trace bourbon and Parrot Bay rum, initially connected with 818 when the brand did a collaboration with its Traveller Whiskey, created by country singer Chris Stapleton.

From The Wall Street Journal • Apr. 28, 2026

Afterward, thousands of giddy fans thronged the malecón, Havana’s seaside promenade, laughing and drinking rum.

From Los Angeles Times • Apr. 20, 2026

The Browns had a hand in everything from ironmaking and rum distilling to whaling and the slave trade.

From Barron's • Jan. 28, 2026

The easiest way to make a non-boozy Piña Colada is to take out the rum.

From Salon • Jan. 18, 2026

But they had to get Grandma down I rum the plane, and getting her out was twice the job of getting her in.

From "A Long Way from Chicago" by Richard Peck

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