Meaning: The cotton-like clouds moved gracefully across the sky.
Choice of Words: Fluffy, an adjective, describes the appearance of the clouds. Clouds, a noun, refers to the visible masses of water droplets or ice crystals in the atmosphere. Danced, a verb, figuratively conveys the movement of the clouds. Across, a preposition, indicates the direction of the movement. Blue sky, a noun phrase, refers to the expanse of sky above.