Those extra words don’t cost us much because it doesn’t come up very often—maybe never. But for people involved in specialized activities, it’s worth it to be able to communicate a complex concept in a single word that laypeople would need lengthy phrases to convey. Having a nuanced, precise vocabulary is what jargon is all about. It’s why carpenters have at least a dozen names for different kinds of nails, and in the field of neuro-oncology, there are more than 120 types of brain and central nervous system tumors.
