Is there an English dialect?

You have misunderstood the difference between language and dialect. Language is the set of words that we use to communicate with other people. A dialect is a regional variation of that language. Most Scottish people speak English with a distinctive Scottish accent, but they will not necessarily speak in a dialect. In the more remote areas of Scotland, you might hear dialect being used, but that happens mostly among natives who can understand the dialect.

Dialects are found in several regions of England, but mostly in remote areas, away from large urban settlements, and, even then, mainly among natives.

There is no such thing as an English dialect (as mentioned in your Update 3). We all speak one language, and that is English.

No. (Maybe)

English is a LANGUAGE.

English has MANY dialects.

England itself contains many dialects of the English language.

I speak American English.

I differentiate it from British English.

But I never thought to say English English.

It's a humorous/humourous thought!

p.s. The Geordie video is funny, but that's not a dialect of English, it's a lot of slang. If you think it's a dialect of English them provide a Geordie dictionary.

There are a great many English dialects. There are 5 major dialect families in the UK alone, let alone the rest of the world. West County English is different from Yorkshire English, for example. Scots is different enough that most scholars call it a different language now.

All people, of any language, speak a dialect of that language. It might be the only dialect left, in some endangered languages, but it's still dialect.

Even formal standards, like Received Pronunciation, are a dialect (that is favored for formal use). Sometimes a formal standard is natural dialect that was chosen, other times it is a deliberate mixture of the most dominating dialects of a language.

Some languages, such as English, have more than one formal standard. Scotland within the UK, the UK, Australia, and the USA, for example, all have their own formal standards.

Both England and the USA have many dialects within them (but they are often grouped together into a handful of related dialects).

Any form of English spoken anywhere is a particular dialect, even if it is a formal standard.

However, nobody refers to any of them as a single English dialect.

Welsh is a language. This sentence is not in a dialect of English: "Codaf yn gynnar bob dydd."

Scottish Gaelic is a language. But perhaps you meant the Scottish version of English. I'd say that definitely qualifies as a dialect, especially in certain regions. I think Glasgow is one of the regional accents I can hardly understand at all.

There are definitely English dialects in England. Look at this article. There's a list at the end, just before the references.

https://en.wikipedia.org/wiki/Survey_of_English_Di...

Here's a funny YouTube on the Geordie Dialect: https://www.youtube.com/watch?v=yX8qgW8rGbw. (He's asking Australians to try to guess what his dialect sentences mean). I think you'd agree that his Geordie sentences are not just standard English with a different accent.