swish
n. B2 Upper Intermediate US //ˈswɪʃ// UK //swˈɪʃ// swish
n. a smooth, fast movement that makes a soft sound. You often use this to describe how someone moves or how a liquid flows.
n. a smooth, rapid movement or sound produced by such motion.
The swish of the curtains was the only sound in the room.
The swish of the broom across the floor signaled the start of the morning cleaning routine.
As the athlete sprinted down the track, the swish of his running shoes against the synthetic surface provided a rhythmic backdrop to his final lap.
From noun, imitative of the sound