"Biggest misconceptions" refers to widely believed ideas or beliefs that are incorrect or misunderstood. It means the most common misunderstandings or false assumptions people have about a certain subject. Full definition
The single biggest misconception about business credit is that in addition to their personal credit score, they have a business credit profile. (ondeck.com)
What is the other big misconception that's holding us back? (discovermagazine.com)
Today, I'll address one big misconception on whether or not it is a good idea to close a credit card. (personalprofitability.com)