Blowing in the wynd

Can anyone tell me the difference (if any?) between a ginnel,a snicket, and a snickelway?
I've been in Yorkshire a few years now, and no-one seems sure!!

That sounds familiar - I'm sure a ginnel is a back accessway - I think it might be one that doesn't go under the house - that always used to be called a 'passage'. In Venice they have a particular name "Sottoportego" to denote a passageway under a building to contrast with a "calle" which doesn't.

Snicket? I have a feeling that that is the under-building passage, but I stand to be corrected.
I would deduce that a 'snicketway' might be the same as a 'carriageway' - a covered passage big enough to take a carriage passing through.

Please correct me.

I found a website called "International Pedestrian Lexicon" user.itl.net/~wordcraf/lexicon.html that offers this definition of snickelway:

"snickelway, snickleway - generic term for alleyways, snickets or ginnels; in other words, narrow passages leading from one place to another, which may have walls or hedges on either side (Northern England)"

This definition makes it sound like they're all interchangeable.

Some of them are bounded on both sides by fences, and others by walls.

The Brits have great names for streets and passageways, as the above shows. They also have mews, which, as I understand it, are the living units built (usually in the backs of the big homes in London and elsewhere) which have been remodeled from horse stables. There are a lot of very expensive mews in London!

I once met an English guy from London at a die cast car show in Pennsylvania. Since I was planning a trip to London I asked him if he knew any good shops where I could find some old Matchbox cars. He said to go to a shop in "Graze in Muse". I asked him to repeat the address a couple of times before I gave up and thanked him. When I was in London I just happened to notice Gray's Inn Mews in my A-to-Zed guide. I'd forgotten all about "mews" so I didn't make the leap from "muse" to "mews". As an afficionado of The Avengers I should have remembered John Steed's address was 3 Stable Mews.

Near my home there is Main Sprit Wynd.
Webster's 1913 Dictionary Wynd n. 1. A narrow lane or alley.
The narrow wynds, or alleys, on each side of the street. - Bryant.