SINCE 1828
what does one know
idiomDefinition of what does one know
informal
—used to say that someone is wrong about something "She thinks I should take the job." "What does she know? You should do what you want."
Comments on what does one know
What made you want to look up what does one know? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Late Autumn 2018 Words of the Day Quiz
-
- Which is a synonym of yahoo?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZ
Share what does one know
Resources for what does one know