A conclusion is the the end of something. Kind of like a resolution, the conclusion of the race would be at the end of the the race when everyone has finished. A conclusion is also the last paragraph of a non-fiction price of writing, the paragraph that sums it all up.
It seems like "conclosion" may be a typo or a term that does not have a standard definition. Could you provide more context or clarify the term you are referring to?