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

亜温帯[aontai] subtemperate zone
亜寒帯[akantai] subarctic zone
亜熱帯[anettai] subtropics
安全地帯[anzenchitai] safety zone
衣帯[itai] clothes and obi

一衣帯水[ichiitaisui] (being separated only by a) narrow strip of water
一帯[ittai] region
黄道帯[koudoutai] zodiac
温帯[ontai] temperate zone
下帯[shitaobi] loincloth