Help me set up macros in word

I’m just looking for someone to show me how to set up a macro to perform find and replace function on word docs. I commonly need to use custom abbreviations in different docs (usually containing similar language and needing the same phrases abbreviated) and would like to be able to paste the original copy in word and have a list of a bunch of phrases that I can abbreviate with a click. I.E. "Welcome to our new location" would be abbreviated "Welc to our new loc". I would want to be able to abbreviate that phrase (just an example) in any new document.