double-deck

[ duhb-uh l-dek ]
/ ˈdʌb əlˈdɛk /
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adjective

Also dou·ble-decked. having two decks, tiers, or levels: a double-deck bunk; a double-deck bus.

verb (used with object)

to add a second deck to (a bridge) or a second level to (a road).

Origin of double-deck

An Americanism dating back to 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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