IPA: //ˈdɛkˌhaʊs//
KK: /ˈdɛkˌhaʊs/
A small building or structure located on the upper deck of a ship, often used for various purposes such as storage or living quarters.
The crew gathered in the deckhouse to discuss the day's navigation plans.
Deckhouse → The word is formed from "deck" (from Middle Dutch *dec*, meaning a flat surface or platform) and "house" (from Old English *hus*, meaning a dwelling or shelter). A deckhouse refers to a structure or shelter built on the deck of a ship.
Think of a 'flat surface' ('deck') where a 'shelter' ('house') is built — that's what a deckhouse is, a shelter on a ship's deck.