nuage

In a sentence

• Un nuage est apparu dans le ciel bleu.

  A cloud appeared in the blue sky.

  Here, 'nuage' refers to a meteorological formation made of condensed water droplets in the atmosphere, typically seen floating in the sky.

• Le nuage de poussière provoqué par le camion était énorme.

  The dust cloud caused by the truck was enormous.

  In this usage, 'nuage' metaphorically represents a large accumulation or concentration of particles in the air, forming a visible mass.

• Le nuage informatique permet de stocker des données en ligne.

  The cloud computing allows storing data online.

  Here, 'nuage' is used in a technical metaphorical sense, referring to 'the cloud' in computing which symbolizes decentralized online data storage systems.