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roommate

American  
[room-mayt, room-] / ˈrumˌmeɪt, ˈrʊm- /

noun

  • roommates
    plural
  1. a person who is assigned to share or shares a room or apartment with another or others.


roommate British  
/ ˈruːmˌmeɪt, ˈrʊm- /

noun

  1. a person with whom one shares a room or lodging

"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 roommate

An Americanism dating back to 1780–90; room + mate 1


Explanation

Someone who shares a dorm room or an apartment with you is your roommate. Even if you live in a big house, the people who share it with you — and split the rent — are your roommates. If you live in a dormitory when you go to college, you'll probably have at least one roommate, and even after college it's common to share an apartment or house with roommates. You can call the campers in your cabin at summer camp roommates, though you could also call them cabin mates. The word roommate was a late eighteenth century American English invention.

Keep Reading on Vocabulary.com

Vocabulary lists containing roommate

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:

“There’s plenty of roommate stories still out there to tell, and there’s no shortage of exes,” Childs said.

From Los Angeles Times ● Oct. 15, 2026

Add a roommate instead of getting your own place.

From MarketWatch ● Oct. 7, 2026

Karnofsky was once Amodei's roommate, and is now married to his sister Daniela, who co-founded Anthropic with him.

From Barron's ● Oct. 2, 2026

His roommate, the same one he rented with, helps him pay the mortgage.

From The Wall Street Journal ● Sep. 20, 2026

My roommate has new zombie friends, and they all think I’m a freak.

From "When Dimple Met Rishi" by Sandhya Menon

A company later acquired the home but also didn’t make repairs, pushing Raj and her roommates out.

From MarketWatch ● Oct. 6, 2026

A few times she moved to live with roommates to bring down the cost of renting.

From MarketWatch ● Aug. 26, 2026

Washington Post columnist Marc Thiessen reminisced about working two jobs, living with roommates and eating ramen after college.

From Salon ● Aug. 13, 2026

Mallot handed over a letter with biographical information for all four roommates, including credit scores.

From The Wall Street Journal ● Aug. 10, 2026

“I have picked your roommates for you, so don’t worry your pretty little heads about making arrangements with your buddies.”

From "Here to Stay" by Sara Farizan

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