kōken
1. efficacy; effect
Noun
#163045
1. efficacy; effect
1. If effective; If it works
1. Efficacy; Effectiveness
1. Was not effective.; Did not work.
1. It didn't work.; It was ineffective.
1. Was effective; Worked
1. With effect; By virtue of
1. Effective; Valid
1. If effective; When effective
1. It didn't work.; It wasn't effective.