Also, children don t know the meanings of most of the swear words they use, but they are trying hard to figure them out. Running them by several people to get a reaction is one of the ways you can figure out what words mean. Lastly, three-year olds are not yet fully proficient at expressing their feelings. They are moving away from physical expression like hitting, biting, throwing and kicking and now they are experimenting with expressing feelings using their words. Swearing is one of the methods they explore as they look for satisfying ways to express their feelings.
Children use lots of words they only partially understand.
Ask your child what he thinks that word means. This will give you an idea of what his level of comprehension is. Give him information. Once you have an idea of what his understanding is, you can give him some information which will help him learn both what the words mean and how people feel about their use. The definitions of most swear words are inappropriate for four year olds and would be difficult for them to understand.