미신이 · 미신을
superstition
Example
밤에 손톱을 깎으면 안 된다는 것은 미신이에요.
The idea that you shouldn't cut your nails at night is a superstition.
Word parts
미 astray+신 belief
Literally 'astray belief'.
Good to know
A famous Korean superstition: writing a living person's name in red ink is bad luck.
Related words