decker

In a sentence

• Le bus à deux étages est appelé double-decker en anglais.

  The two-story bus is called double-decker in English.

  Here, 'decker' is used as part of a compound word referring to the layers or levels of the bus.

• Ce pâtissier fabrique des gâteaux très élevés, parfois avec plusieurs étages, comme un triple-decker.

  This pastry chef makes very tall cakes, sometimes with several layers, like a triple-decker.

  In this sentence, 'decker' again appears in a compound word, indicating the number of layers in the cake.

• Les vieux films de gangsters montrent souvent des double-deckers traversant les ponts de la ville.

  Old gangster films often show double-deckers crossing the city bridges.

  Here, 'decker' describes the multi-story vehicles in the historical context of films.