1. leaf of the iris
2. variant of 药 yào

1. medicine
2. drug
3. substance used for a specific purpose (e.g. poisoning, explosion, fermenting)
4. to poison

classifiers: 種, 服, 味

1. to use; to make use of; to employ
2. (coverb) with; using
3. to need; to have to (usu. used in the negative or in questions)
4. usefulness; utility
5. (bound form) expense; outlay
6. (courteous) to eat; to drink
7. (literary) hence; therefore