A new edition of a best-selling Japanese dictionary has hit stores, with new entries that reflect social trends of the past decade. Publishing house Iwanami Shoten released the 7th edition of Kojien on Friday. About 10,000 of its 250,000 words and names are new entries. They include "black kigyo," which means "a company that pays little or no heed to workers' welfare." The Japanese equivalents of "smartphone," "app" and "tweet" have made their debut in the time-honored dictionary.