Final answer:
In Wordsworth's 'I wandered lonely as a cloud,' the speaker compares himself to a cloud using a simile.
Step-by-step explanation:
In William Wordsworth's poem "I wandered lonely as a cloud," the speaker uses a simile to compare himself to a cloud. This literary device is evident in the opening line of the poem, which reads, "I wandered lonely as a cloud that floats on high o'er vales and hills." Through the use of simile, Wordsworth conveys the speaker's sense of isolation and freedom as he moves above the landscape, similar to how a cloud would drift through the sky. Additionally, the daffodils are personified as they are described as dancing and fluttering, which further emphasizes the blending of human and natural elements within the poem.