three-decker

[ three-dek-er ]
/ ˈθriˈdɛk ər /
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noun

any ship having three decks, tiers, etc.
(formerly) one of a class of sailing warships that carried guns on three decks.
a sandwich made of three slices of bread interlaid with two layers of filling; club sandwich.
something having three layers, levels, or tiers.

Origin of three-decker

First recorded in 1785–95
Also called triple-decker (for defs 3, 4).
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for three-decker

three-decker


noun

  1. anything having three levels or layers
  2. (as modifier)a three-decker sandwich
a warship with guns on three decks
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012