EnglishMain Dictionary
knife-edge
Universal Words
noun
[usuallysing.] the sharp edge of a knife
IDIOMS
on a knife-edge
1 (of a situation, etc.) finely balanced between success and failure:
The economy is balanced on a knife-edge.
2 (of a person) very worried or anxious about the result of sth:
He's living on a knife-edge, waiting for the test results.
