trunk-cabinn. a ship's cabin partly above and partly below the upper deck; cf. sense 10e and trunk-deck ( Cent. Dict. 1891).
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society > travel > travel by water > vessel, ship, or boat > parts of vessels > room, locker, or quarters > [noun] > cabin > partly above the upper deck
trunk-cabin1878
1878 F. O. DavenportOn Man-of-War 197 The captain had a small trunk cabin, a little higher and abaft ours.