When words share the same vowel or consonant sound but not both?

This is a bit tricky, as it's not a standard linguistic term. However, it seems you're describing a specific kind of near rhyme.

Here's a breakdown:

* Rhyme: Words with the same ending sound, usually involving the vowel and any following consonants.

* Near Rhyme: Words that sound similar but are not perfect rhymes. There are different types of near rhymes, including:

* Eye Rhyme: Words spelled similarly but pronounced differently (e.g., "love" and "move")

* Slant Rhyme: Words with only one vowel sound in common (e.g., "cat" and "fate")

* Half Rhyme: Words with only the final consonant sound in common (e.g., "cat" and "hat")

Based on your description, you're looking for a type of near rhyme that shares either the vowel sound or the consonant sound, but not both. This isn't a widely used term, but you could describe these words as having:

* Partial vowel rhyme: Sharing only the vowel sound (e.g., "fate" and "late")

* Partial consonant rhyme: Sharing only the consonant sound (e.g., "cat" and "bat")

It's important to remember that even within these categories, the degree of similarity can vary. Some pairs might sound quite close, while others are more distantly related.

Let me know if you have more examples in mind, and I can help you analyze them!