My friends grew up on Saiboats which they call Yachts in the UK where we lived. I had to work hard to learn all the right terms when I bought my first keelboat in 1985. I've crossed the Atlantic with these two mates on my boat. They are highly experienced and to this day both have Yachts moored on the East coast of the UK.
When we are having tea (a very frequent occurrence), they refer to all lines, sheets, tackle, halyards as.....STRING.
They do it in the context of, "I need to stow all the string before we leave the boat/hoist the spinnaker/get out the mooring lines".
So to me STRING is the generic term for all the bendy stuff that attaches to things. I think it's an Essex thing
~A
PS to forestall a blitz of corrections I hasten to add that when they want a specific piece of string handled they will of course say "trim the mainsheet" or "free the preventer". String is the generic umbrella term for everything bendy that is not chain or wire.