Here are some possibilities for what you might have meant:
* Swear: This is the most likely word. It means to use offensive language, or to make a solemn promise.
* Swearword: This refers to a word that is considered offensive or taboo.
* Sway: This means to move back and forth gently.
To get the most accurate answer, please provide more context. For example:
* What were you reading or listening to when you encountered this word?
* What is the sentence or phrase where you saw "sware"?
Knowing more about the situation will help me understand what you're looking for.