- One who, or that which, decks or adorns; a coverer; as, a
table decker. - A vessel which has a deck or decks; -- used esp. in
composition; as, a single-decker; a three-decker.
Meaning of 'decker' (Princeton's WordNet)
1 . decker
[ n]
Meaning (1): - (often used in combinations) something constructed with multiple levels