I think that for me the problem with "list" is that it's both a formal term for a particular data structure and an informal term for a bunch of items, so that a list{2} may or may not be stored in a list{1}, and it seems entirely possible that one's default parse for "ordered list" might depend on which sense came to mind first.

Thank goodness we have "bunch" which isn't the formal term for any data structure... I hope.

Clearly it refers to a tree with no particular arity constraints, where the leaf nodes are all spherical.