Documentation on this subject was quite clear: http://jqueryui.com/sortable/#connect-lists-through-tabs
I tried to do the same in my project, but I cannot get element to
Jamie's answer led me to my own solution:
var $list = $($item.find("a").attr("href"));
instead of:
var $list = $($item.find("a").attr("href")).find(".word-list");
Without changing markup!