I think one of the best counterexamples is The Jabberwocky by Lewis Carroll. If names (and more generally English words) conveyed no meaning on their own and w

I think one of the best counterexamples is The Jabberwocky by Lewis Carroll. If names (and more generally English words) conveyed no meaning on their own and were simply keys in a large fuzzy hash table, the poem would be completely opaque. However, despite the fact that almost every word in it is made-up (new, never a be foreseen keys), I'd argue that most English speakers, after reading the poem, would have a reasonably common understanding of what "slithy" meant or what a "borogrove" was. If names fit well with what a person already knows, they can aid memory and even impart understanding. If names are poorly chosen they can instead confuse.