You can do that directly on Microsoft Word. The manual way would be ctrl + f and search & replace the word you want. Or, you could go to tools > autocorrect, and set your own words you want Word to auto replace.

that the native language resonates stronger in the emotional part of the brain and therefore changes the outcome of an emotional and moral question like this.

I definitely agree. When I swear in Korean the curses have more emotional weight, whereas swearing in English just doesn't have the same emotional "release."

Also, since Korean culture is very much hierarchical (in that your mannerisms are more submissive/obedient towards elders) my voice is higher pitched, whereas in English, my voice is notably deeper. Pretty interesting now that I think about it...

All the singles so far has all been impressive. Can't wait to hear it all in one cohesive narrative.