Simple Definition of roommate

from our Learner's Dictionary

roommate

noun

ˈruːmˌmeɪt

plural roommates

: a person who shares a room, apartment, or house with someone else

She was my college roommate. = We were roommates in college.

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“Roommate.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/roommate. Accessed 19 Jun. 2026.

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