In sonnet 55 by william shakespeare, the line "when wasteful war shall statues overturn" contains repeated w and s sounds. this repetition is the sound device called

Alliteration.

Explanation:

The musical sound of Alliteration is the repetition of consonants in the verse so that they could be stressed. In Alliteration, the sounds of the words are same because consonants are repeated in a similar pattern. Alliteration is important for making a poetry musical and allows a rhythm in words which allows easy memorization of poetry.