Respuesta :

Rhyme - correspondence of sound between words or the endings of words, especially when these are used at the ends of lines of poetry.

Answer:

Rhyme

Explanation:

Rhyme is the repetition of the last syllable at the end of a line, which is used to create a harmonious sound in a piece of poetry.  

The words "knot" and "plot" rhyme because their ending "ot" has a homophonous sound, adding a pleasant effect to the poem.