Yes, just don't use them in front of Alexa or children!
Good grief, what a question. Fortunately, this seems to be a built in feature we cannot disable.
First of all, the OP was looking for an answer to a question, not a lecture. Second of all, there are good reasons to want to turn off censorship. I don't use bad language around children or around anybody else. The very first time I used Alexa, I was searching for information on Maine Coon cats. Alexa came back with "Maine c**n." Not only hadn't I used any offensive language, had I had young children with me, it would have put me in a very uncomfortable position. I'd have to explain why Alexa thought I was using a bad word. I'd have to get into a discussion of racial epithets and why it's bad in some contexts. Frankly, it shouldn't be up to Alexa to accuse anybody of using inappropriate language, nor put any user in an uncomfortable position because it has no clue what's offensive. I certainly shouldn't have to be forced to explain to anybody why I did nothing wrong, and have to explain why Alexa was wrong. How would I even do that without saying that Alexa doesn't know what Alexa is talking about?
If people use vulgar language on purpose, I can only assume that they intend to do so, and of all people they would not be offended if Alexa repeated it back to them. It might be legitimate if Alexa were to speak to a public forum, but it makes no sense to censor anything when speaking to an individual who doesn't want things censored, especially when they aren't objectionable.
So is there a way of turning this off, or should people stick with one of the many alternatives to Alexa that are out there?