Home › Words › M › maindeckmaindeckmaindeck means the principal deck of a ship or vessel.Among words judged in Lexicurio's Arena, maindeck ranks #1,011 of 42,749 for Qualifying.EtymologyFrom main + deck.nounThe principal deck of a ship or vesselDefinitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.belowdecks 73% match — Below the main deck of a ship. vs maindeck →deckside 69% match — On the deck of a vessel. vs maindeck →afterdeck 68% match — The part of a ship's deck from amidships toward the stern. vs maindeck →abovedeck 68% match — On deck. vs maindeck →decktop 68% match — The top of a deck (on a ship etc.). vs maindeck →subdeck 66% match — The undersection of a deck (as of a bridge or a ship). vs maindeck →tweendeck 65% match — A deck on some merchant ships between the maindeck and the hold. vs maindeck →deckward 64% match — Toward the deck of a ship. vs maindeck →