deck noun

1 top outside floor of a ship/boat

ADJ. open

VERB + DECK go up on When we heard the alarm, we went up on deck.

PREP. below ~ The passengers were trapped below deck. | on ~ I joined the others on deck.

2 one of the floors of a bus/ship

ADJ. lower, top, upper | aft/after, main, poop, promenade, saloon, sun (on a ship)

PREP. on a/the ~ sitting on the top deck of the bus