In architecture, a deck is a flat surface capable of supporting weight, similar to a floor, but typically constructed outdoors, often elevated from the ground, and usually connected to a building. In the United Kingdom it is usually called a decked patio or area. The term is a generalization from the deck of a ship.

What does deck mean slang?

deck verb [T] (HIT)

slang. to hit someone, especially to hit someone and knock them down: Do that again and I'll deck you.

What does deck someone mean?

​informalto hit someone so hard that they fall to the ground. Synonyms and related words. To knock someone down by hitting them. knock.