Verb (5-dan, く, intransitive)
1. to be effective; to take effect; to be good (for)
usu. 効く
2. to work; to function well
usu. 利く for body senses, functions, etc.
3. to be possible (to do, use, etc.); to be able to
Verb (5-dan, く, transitive)
4. to taste (alcohol); to try