一か八か[ichikabachika] sink or swim
嘘っ八[usoppachi] downright lie
嘘っ八百[usoppappyaku] full of lies
嘘八百[usohappyaku] full of lies
八釜しい[kamabisushii] noisy

口八丁[kuchihacchou] voluble
三十八度線[sanjuuhachidosen] the Thirty-eighth Parallel
四苦八苦[shikuhakku] being in dire distress
四通八達[shitsuuhattatsu] traffic network extending in all directions
四方八方[shihouhappou] in all directions

八幡の不知藪[yawatanoyabushirazu] labyrinth
八幡宮[hachimanguu] Shrine of the God of War
八幡知藪[yawatashirazu] labyrinth
棚幡[tanabata] Festival of the Weaver (July 7th)
八幡[hachiman] Hachiman (God of War)

弓矢八幡[yumiyahachiman] god of war
幢幡[douban] hanging-banner used as ornament in Buddhist temples
仙台棚幡まつり[sendaitanabatamatsuri] Sendai Tanabata Festival
南無八幡大菩薩[namuhachimandaibosatsu] O Great God of Arms, I beseech your aid against my enemy!