Definition of triple–decker
: something having three basic components or levels: asa : trilogyb : a sandwich consisting of three pieces of bread and two layers of fillingc : a 3-story dwelling with an apartment on each floor
First Known Use of triple–decker
TRIPLE–DECKER Defined for English Language Learners
Definition of triple–decker for English Language Learners
: something that has three levels or layers
Seen and Heard
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