Misconception
/ˌmɪs.kənˈsɛp.ʃən/
Synonyms
- error
- fallacy
- illusion
- misunderstanding
- incorrect belief
Slang Meanings
Myth
That whole thing about eating carrots improving your eyesight is just a myth.
False assumption
Thinking that you can cram for exams the night before is a false assumption.