Question

Where thoughts serenely sweet express How pure, how dear their dwelling place. (“She Walks in Beauty”, lines 11-12) These lines represent an example of _____.

Answer 1

I believe it is alliteration

Step-by-step explanation:

Serenely Sweet express/ How pure How dear

Answer 2

Where thoughts serenely sweet express How pure, how dear their dwelling place. “She Walks in Beauty”, lines 11-12,
These lines represent an example of synecdoche.
It is a figure of speech in which a part is made to represent the whole or vice versa.