I alway like how efficient languages are, important word that you use a lot are short, uncommon words long. It maximizes the bitrate of communication, and it also tells a lot about what people are commonly talking about.
Take for instance the Hawaiian word: "A‘ā" which means "Sharp jagged lava rock". It's brilliant, you cut your big toe for the millionth time on a sharp jagged lava rock and all you have to do is shout "A!".
In Inuit "A" means either "Yes" or "Stop" or "Ouch!", depending on context. The logic of that is a bit more difficult to figure out, I bet there is a lot of confusion up there.