Meaning of "deck" in Essential American English Dictionary

deck

noun us /dek/

one of the floors of a ship, bus, or plane:

The children like to sit on the top deck of the bus.
The kids like going out on the deck when we ride the ferry.

a wooden floor outside a house, usually with a low fence around it and without a roof:

In the summer, we eat on the deck whenever we can.

a set of cards used for playing games

(Definition of “deck” from the Webster's Essential Mini Dictionary © Cambridge University Press)