misconception
noun /ˌmɪskənˈsepʃn/
  /ˌmɪskənˈsepʃn/
[countable, uncountable]- misconception (about something) a belief or an idea that is not based on correct information, or that is not understood by people
- frequently held misconceptions about the disease
 - a popular misconception (= one that a lot of people have)
 - Let me deal with some common misconceptions.
 - Their views are based on misconception and prejudice.
 
Extra Examples- We hope the documentary will dispel certain misconceptions about the disease.
 - popular misconceptions about AIDS
 - A popular misconception is that immigration is bad for the economy.
 - I get annoyed by people's misconceptions about older employees.
 - It's a common misconception that people who live together have the same rights as a married couple.
 - It's a widespread misconception that only women get breast cancer.
 
Oxford Collocations Dictionaryadjective- common
 - popular
 - widespread
 - …
 
- have
 - hold
 - give rise to
 - …
 
- be based on something
 - arise
 
- misconception about