잣대가 · 잣대를
measuring stick, ruler; standard, yardstick (for judging)
Example
남에게만 엄격한 잣대를 들이대면 안 돼요.
You shouldn't apply strict standards only to other people.
Word parts
자 (ruler) + 대 (stick), linked with a ㅅ: literally a 'ruler stick'.
Good to know
이중 잣대 means 'double standard'; the verb is usually 잣대를 들이대다 or 적용하다.
Related words