I think I am making you confused here , somewhere ,

Excel file I am using so that I can organize all related words in one place, and then as I used t search google and find there respective code or values I put next to respective words.

Now from here it becomes easy while working with word file editing to just copy the word from word doc and open excel first find where it is, copy the respective against value, and replace in word if it is desired, else find next and replace....
Copy the next word and search again......

This is work around I do for every word....