three-decker

noun

three-deck·​er ˈthrē-ˈde-kər 

1

: a wooden warship carrying guns on three decks

2

: triple-decker

Examples of three-decker in a Sentence

Recent Examples on the Web

At the scene, Kilduff and his crew stopped flames, shooting through the roof of a three-decker on Treadway Road, from spreading to adjacent houses, saving property and possibly even more lives. — Lance Reynolds, Boston Herald, 29 May 2026

Three Boston firefighters were taken to the hospital after battling a four-alarm blaze that began in a Dorchester three-decker and spread to two other homes Monday afternoon, leaving 30 people displaced, officials said. — Nick Stoico, BostonGlobe.com, 7 Aug. 2023

Word History

First Known Use

1795, in the meaning defined at sense 1

Kids Definition

three-decker

noun

three-deck·​er

ˈthrē-ˈdek-ər

: something made with three floors or layers