Dels posted...
no dictionary writer would find an elegant way to write "bread with something between it but NOT if that thing is a beef patty" so they probably still wouldn't define it that way
It's easy. The dictionary would declare up front that the definitions of the words apply to each thing that fits the description, except if there's a specially distinct word for that thing. Those distinct words would be marked by a star or something.
So "burger" would have a star, and so would "taco", but maybe "apple" would not have a star, because if you say you will bring fruit and you bring a bunch of apples, people would be ok with that.