How do you change and shoes to abstract noun?

Here's how to change "change" and "shoes" into abstract nouns:

* Change:

* Abstract noun: Alteration (the process of changing), Transformation (the process of changing into something else), Variation (the act of changing or being different)

* Shoes:

* Abstract noun: Footwear (the general concept of covering for the feet)

Let me know if you want to explore other examples or have any other words you'd like to convert!