1) Cheerleader singer 2) Drop 3) Gosh preceder 4) Japanese feminine given name 5) Lake in Japan 6) Old dodge 7) Open messaging interface Found on https://www.crosswordclues.com/clue/omi
The most powerful omi added the prefix Ō (大) to omi and was referred to as Ōomi (大臣). Examples of Ōomi mentioned in the Nihon Shoki included Kazuraki no Tsubura (葛城円) during the reign of Emperor Richū, Heguri no Matori (平群馬鳥) during the reign of Emperors Yūryaku and Seinei, Kose no Ohito (許勢男人) during the reign of ... Found on http://en.wikipedia.org/wiki/Omi
(from the article `Japan`) ...thus headed by a hereditary ruler, while its members were drawn from the group of powerful clan leaders awarded kabane (titles). The two major ... Found on http://www.britannica.com/eb/a-z/o/17