Any raised flat surface that can be walked on: a balcony; a porch; a raised patio; a flat rooftop.

(nautical) The floorlike covering of the horizontal sections, or compartments, of a ship. Small vessels have only one deck; larger ships have two or three decks.

(aviation) A main aeroplane surface, especially of a biplane or multiplane.

(card games) A pack or set of playing cards.

(card games, by extension) A set of cards owned by each individual player and from which they draw when playing.

(journalism) A headline consisting of one or more actual lines of text.

A set of slides for a presentation.

(computing) A collection of cards (pages or forms) in systems such as WML (Wireless Markup Language) and HyperCard.

(slang) A folded paper used for distributing illicit drugs.

(colloquial) The floor.

(theater) The stage.

Short for tape deck.

(uncommon) To furnish with a deck, as a vessel.

(informal) To knock someone to the floor, especially with a single punch.

(card games) To cause a player to run out of cards to draw, usually making them lose the game.

(transitive, sometimes with out) To dress (someone) up, to clothe with more than ordinary elegance.

(transitive, sometimes with out) To decorate (something).

(transitive) To cover; to overspread.