Elegant way to replace several words with a word

[zongtaowang]

Hi all,
Suppose I want to replace the words two and three with the word one. Here's the process:

1. First, select the word **one** and press `y` to save it to the kill ring.
   

2. Then, select the target word **two** and press `p` to replace it with **one**. So far, everything works as expected.
   

3. Next, I continue by selecting the word **three** and press `p`, but it gets replaced with **two** instead of **one**, which is not the desired outcome.
   

I understand that I can cycle through the kill ring to select the word one and paste it, but that seems cumbersome, imagine when I need to replace 100 different words with one. Cycling through the kill ring that many times would be inefficient.

So, the question is, is there an elegant way to accomplish this task in Spacemacs without having to repeatedly cycle through the kill ring?

[zongtaowang]

After some research, I found a method, using "ay to copy one into register 'a' and then use "ap to paste it on any where you need. The key insight is that registers 'a' to 'z' are not affected by the kill ring.