The word "notion" refers to an idea, belief, or understanding about something. It can also be used to describe a vague or general understanding of a concept. Full definition
The result is a highly inefficient system that falls far short of notions of justice and fairness. (lawyerist.com)
Yet in doing so they are left with no foundation for moral knowledge, and must get by with notions of liberation, struggle, and propaganda. (firstthings.com)
The main problems stated by notion ink in their blog is as you mentioned, flash. (goodereader.com)