Text "macros" in Microsoft Word

[Chaotic42]

Hi all. I don't usually use Word very much, but I've been tasked with a rather large project involving it, and I was wondering if there was some way to use linked text "macros" to insert the same text (and ensure consistency) throughout multiple documents. (If this doesn't exist, I'm claiming the idea here right now 😛)

I would like to do something like this:

Document1.doc:
[$A] I like cheese

Document2.doc:
[$A] I don't like cheese

SomeKindOfMasterMacroDocumentThing.doc:
$A = "Subsection 13.4.2.2.1.2.3.4.5.2.2.3.23219 - Cheese Affinity: "

So that when you save out or export Document1.doc to a PDF, you get:

Document1.pdf:
Subsection 13.4.2.2.1.2.3.4.5.2.2.3.23219 - Cheese Affinity: I like cheese

Does such a beast exist? If so, what's it called and how can I use it? I'd also like to be able to use something like CSS so that I can just wrap the thing up in tags so that formatting is consistent:

<h2>[$A] I like cheese</h2>

Any luck on that front?

Thanks