Final answer:
The literary device used in the line is a simile, highlighting similarities between two different things using 'like' or 'as'.
Explanation:
The literary device used in the line "huge fragments vaulted like rebounding hail" from the poem 'Kubla Khan' is simile. A simile is a figure of speech that compares two different things using 'like' or 'as', highlighting similarities between them. In this case, the speaker is comparing the huge fragments to rebounding hail, emphasizing the visual and dynamic qualities of the scene.
Learn more about Identifying literary devices in poetry here:
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