Main entry: failing, flunk
Definition: failure to reach a minimum required performance
Usage: his failing the course led to his disqualification; he got two flunks on his report
Antonyms: qualifying, pass, passing
Definition: success in satisfying a test or requirement
Main entry: fail, flunk, flush it, bomb
Definition: fail to get a passing grade
Usage: She studied hard but failed nevertheless; Did I fail the test?