What term describes when two words have the same ending sound?

The term that describes when two words have the same ending sound is "rhyme." Rhyme is a fundamental element in poetry and music, creating a musical quality and enhancing the flow of the language. It often serves to reinforce meaning, create memorable lines, or enhance emotional impact in a piece of writing.

The other options are related to poetry but do not specifically refer to the concept of words having the same ending sound. A stanza refers to a grouped set of lines in a poem, typically separated by a space from other stanzas. Verse is a term that can refer to any line of poetry or to poems as a whole. A sonnet is a specific form of poetry consisting of 14 lines with a particular rhyme scheme and meter. While all these terms are important in discussing poetry, they do not define the specific relationship of sound that "rhyme" does.