What are some misleading words in English?

There are many misleading words in English, such as dude, Chuck, Gross and so on. It is easy to be misleading. When we go out to play, we always like to show off the English words we have learned. Once when we went out together in our dormitory, we saw a foreigner dressed in fashion. Then one of our roommates wanted to show off his English, so he ran over to be close to the old coat and said, dude, the foreigner was very angry. Stared at us and left. We are all confused. We have no idea why. Later, we looked up the word. It turns out that this word has two meanings. My friend wanted to express my brother's meaning, but foreigners thought that we said he was a playboy and ruined his children, so there was a misunderstanding. These English words are really easily misunderstood.