'Double-decker' definitions:

Definition of 'double-decker'

(from WordNet)
noun
A vehicle carrying many passengers; used for public transport; "he always rode the bus to work" [syn: bus, autobus, coach, charabanc, double-decker, jitney, motorbus, motorcoach, omnibus, passenger vehicle]

Definition of 'Double-decker'

From: GCIDE
  • Double-decker \Dou"ble-deck"er\, n.
  • 1. (Naut.)
  • 1. A man-of-war having two gun decks. [1913 Webster]
  • 2. (a) A tenement house having two families on each floor. [Local, U. S.] (b) A biplane a["e]roplane or kite. [Colloq.] [Webster 1913 Suppl.]
  • 3. anything having two decks or levels, as a bus with two levels for passengers. In older vehicles, less often today, the upper deck was open, as on street cars. [Colloq.] [PJC]