There are some publishing industry terms that are designed to confuse us. It's like the people who created the terms did it deliberately, determined to make all of us scratch our heads and question the sanity of those around us.
Today's term is doubly confusing, because it has different meanings depending on the context.
Blurb and synopsis. Two words that can have the same meaning, but have completely different meanings at the same time. (I did mention how some terms were designed to confuse us, right?)
Let's break this down and define these terms.