威勢 いせい power #11,590 Meanings noun power; might; authority; influence spirits; vigor; vigour; energy; boldness Its kanji 威 イ · おど.す、おど.し、おど.かす intimidate, dignity, majesty, menace, threaten 勢 セイ、ゼイ · いきお.い、はずみ forces, energy, military strength