Etymology
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roommate (n.)

also room-mate, "one who shares a room with another or others," 1789, American English, from room (n.) + mate (n.). Short form roomie is by 1918.

updated on September 28, 2021

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Definitions of roommate from WordNet

roommate (n.)
an associate who shares a room with you;
Synonyms: roomie / roomy
From wordnet.princeton.edu, not affiliated with etymonline.

Dictionary entries near roommate

rook

rookery

rookie

room

roomer

roommate

roomy

roose

Roosevelt

roost

rooster