It means: a state of being puzzled or uncertain.
For example:
* "The instructions were so confusing, I was in a state of complete confuse."
However, if you want to express the act of confusing someone, you can use these noun forms:
* Confusion: This is the most common noun form, emphasizing the state of being confused.
* Confusement: This is a less common but valid noun form, also emphasizing the state of being confused.
* Confusing: This is an adjective, but it can sometimes be used as a noun, especially in informal contexts, to refer to something that causes confusion.
Here are some examples:
* "The sudden change in plans caused a lot of confusion."
* "His speech was full of confusement."
* "The instructions were a total confusing."
Note: Using "confusing" as a noun is not as grammatically correct as "confusion" or "confusement," but it's still understandable in casual conversation.