Depends which dictionary you use. Some things should not be good but they are. The other thing is not all words are what you think they mean, and some words like nazis are accepted, did not used to be then they gave the Nazis what they earned. They are not proper nouns, so now nazis. .. ..There are several scrabble dictionaries in use USA uses OSPD . Brits use Collins I think. Some of the words look so weird but if you practice them eventually they are second nature. Just remember people on the other end of their computers might not like all the nasty words that are in the dictionary ..Friendly hint: I pick a new word I see and write it down..use it 3 times then scratch it out and add another..but do remember the one I scratched out and more I use it more natural it feels. Good luck