You mean the roots gana, piqsir-poc, qimuqsuq and aput? those are the 4 Boas listed, I don’t know if there are more. Laura Martin pointed out the myth perpetuated by Whorf was false, and really its just like the many different roots we have for water in English; sea, ocean, lake, loch, river, puddle, dew and so on. No one would claim that means we have multiple words for water in English in the way they claim Eskimo languages have multiple words for snow. We even have multiple words for snow in English; snow, slush, sleet, powder, probably more. Pullum’s essay on this is worth a read:Yupik is not Inuit, but both are Eskimo. And both have many different words for snow with completely different roots.
It’s used as an argument for the strong version of linguistic relativity, linguistic determinism. This is essentially saying the language we speak determines how we see and think about the world, so that people who speak different languages have different thought processes. This is widely regarded as false.