You know what it looks like… but what is it called?
TAKE THE QUIZ“one know”
The following 2 entries include the term one know.
how should/would one know
idiom—used to say that one does not know something and should not be expected to know the answer
what does one know
idiom—used to say that someone is wrong about something
Love words? Need even more definitions?
Merriam-Webster unabridged