IPA: //ˈkæbɪnˌmeɪt//
KK: /ˈkæbɪnˌmeɪt/
A person who shares a cabin with someone else, typically on a ship or in a similar setting.
My cabinmate and I became good friends during the trip.
Cabinmate → It is formed from "cabin" (from Old French *cabane*, meaning a small shelter or hut) and "mate" (from Old English *gemetta*, meaning companion or associate). The word "cabinmate" refers to a companion or person who shares a cabin with someone.
Think of a 'cabin' as a small shelter and 'mate' as a companion — a cabinmate is someone who shares that small space with you.