what do the words have in common?

body:emollient::soul:

sand paper, cacophony, kind word, crotchet, anger

An emollient soothes the body. What soothes the soul?

kind word?

To find out what word soothes the soul, we need to identify the word in the given options that is similar to "emollient" in its relation to the "body".

The word "emollient" is something that soothes or softens the body, typically referring to a lotion or cream that provides relief to the skin. So, we are looking for a word that performs a similar soothing or calming function but for the soul instead of the body.

Let's examine the options:
- Sand paper: Sand paper does the opposite of soothing; it roughens surfaces.
- Cacophony: Cacophony refers to a harsh and unpleasant mixture of sounds, which is not soothing.
- Kind word: A kind word has the potential to soothe someone's soul and provide comfort, as it shows understanding and compassion.
- Crotchet: Crotchet has various meanings, such as a musical note value or a musical term, and does not directly relate to soothing the soul.
- Anger: Anger is an emotion that can be distressing, not soothing.

Based on these observations, we can conclude that the word "kind word" is the one that is similar to "emollient" as it has the potential to soothe the soul.