What does "decker" mean?

One who, or that which, decks or adorns; a coverer.

Decker

Common synonyms include: deck builder, deck carpenter, finisher, knockout artist, multi decker vessel, outdoor carpenter.

/ˈdɛkə(ɹ)/ name, noun

name, noun ·Rare ·Advanced level

Noun

1
One who, or that which, decks or adorns; a coverer.
"a table decker"
2
Something having a certain number of levels.
"We traveled in a double-decker bus."
3
(often used in combinations) something constructed with multiple levels wordnet

Proper Noun

"Benedito will ride the double decker bus in London."

Etymology 1

From deck (verb) + -er.

Etymology 2

From deck (noun) + -er.