Is there a term for using a word twice in a row, but in a grammatically-appropriate way?

EDITED

You might call this a homonymic phrase (or compound).

Since homonyms are words that sound the same (or are spelled the same) this might be a proper term do describe a phrase, or a part of a phrase, that includes them.

Reading through the closest article to the subject, that I could find in wikipedia did not reveal any specific terms that would cover this scenario.

There are plenty of contrived sentences allowing anything up to an infinite number of repetitions, but no-one has actually given an example where repeating a word serves to emphasise anything. So how about...

Me: I can see the appeal of Polanski's films if you're a paedophile.

You: I like Polanski's films, but I'm not a paedophile!

Me: I didn't mean you you. I mean if someone else was a paedophile.

Okay, maybe not the best example. But I do think it conveys emphasis.

Contrastive focus reduplication. " I like you, but I don't (like) like you."

Could it be termed a composite phrase? The French or Latin origin means "to put together". Composite implies joining. It's the first word that came to mind when reading a news article tonight and noticing unnecessary duplication of the word "that".

Tautonym, like Vulpes Vulpes, for red fox?

You can occasionally repeat a word for emphasis, usually in speech; for example:

She looked over her shoulder and said: 'He's very, very good ...'

But you can't repeat adjectives for emphasis; for example:

a red, red cloth

Is incorrect; whilst

a very red cloth

is fine. However, it is doable in certain languages, for examlle - Bengali; the forner translates as

lal (red), lal (red) kapor (cloth)

It's where the double not for emphases not comes from. I don't know the grammatical term that describes this, but there is likely to be one.