quai

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1.
nounmasculineSing

platform (at a train or metro station)

Le train pour Lyon partira du quai numéro 4.

The train to Lyon will depart from platform number 4.

2.
nounmasculineSing

quay, wharf, or embankment (edge of a river or harbour where boats dock; often a promenade)

Nous avons pris un café assis sur le quai en regardant les péniches.

We had a coffee sitting on the quay watching the barges.