The present invention provides a dispenser which evenly dispenses washing water to a detergent container. Within the dispenser, a slit of a subsidiary water passage is configured in a rib located between an inlet water passage where washing water enters the dispenser and an end water passage distant from the inlet water passage by the farthest. Some quantity of washing water running the inlet water passage is diverged and moves to the end water passage where washing water has been insufficiently supplied. Hereby, washing water is equally scattered over the dispenser and drops into the detergent container. The dissolving power can be much more enhanced.