"The leaves are falling down, / Like tears in a brown crown."
* "Down" and "crown" are not perfect rhymes because they don't have the same vowel sound.
* However, they have a similar sound and create a sense of rhyme because of the shared consonant sounds and proximity of the vowel sounds.
Slant rhymes, also known as near rhymes or half rhymes, add a subtle musicality and complexity to poetry. They can create a feeling of ambiguity, imperfection, or a sense of longing.