double–decker

double–decker /ˌdʌbəlˈdɛkɚ/ noun
plural double–deckers
double–decker
/ˌdʌbəlˈdɛkɚ/
noun
plural double–deckers
Britannica Dictionary definition of DOUBLE–DECKER
[count]
: something that has two levels or layers — usually used before another noun
— compare single-decker, triple-decker