SOUNDED SMOOTH' The term 'Sounded Smooth' can be described by the crossword solution 'Purred', which is a 6 letter word. Purring is a sound made by cats, and is often described as a low, continuous, vibrating sound that is usually pleasant to the ear. It is also used to describe a sound that is smooth and continuous, such as a motor running smoothly. Therefore, the term 'Sounded Smooth' can be accurately described by the crossword solution 'Purred'.