Japanese is a language spoken by over 120 million people in Japan and in Japanese emigrant communities. It is a member of the Japonic language family, which has a number of proposed relationships with other languages, none of which has gained wide acceptance among historical linguists. Japanese is an agglutinative language and a mora-timed language. It has a relatively small sound inventory, and a lexically significant pitch-accent system. It is distinguished by a complex system of honorifics reflecting the nature of Japanese society, with verb forms and particular vocabulary to indicate the relative status of the speaker, the listener, and persons mentioned in conversation. Japanese vowels are pure.