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

お大事に[odaijini] take care of yourself
暗黒大陸[ankokutairiku] Dark Continent (i.e. Africa)
伊勢大神宮[isedaijinguu] the Grand Shrines of Ise
伊勢大廟[isetaibyou] the Grand Shrines of Ise
偉大[idai] greatness

医科大学[ikadaigaku] medical school
医大[idai] medical university
井の中の蛙大海を知らず[inonakanokawazutaikaiwoshirazu] parochial
一大[ichidai] one large ...
一大事[ichidaiji] serious affair

岐阜県[gifuken] Gifu prefecture (Chuubu area)
岐路[kiro] forked road
局所分岐[kyokushobunki] local jump
多岐[taki] digression
非局所分岐[hikyokushobunki] non-local jump

分岐[bunki] divergence (e.g. in a road)
分岐駅[bunkieki] junction
分岐線[bunkisen] branch line
分岐点[bunkiten] junction

がらがら蛇[garagarahebi] rattlesnake
烏蛇[karasuhebi] black snake
錦蛇[nishikihebi] python
黒蛇[kurohebi] blacksnake
縞蛇[shimahebi] pale-yellow snake (non-poisonous)

蛇の目[janome] (umbrella with) bull's-eye (pattern)
蛇口[jaguchi] faucet
蛇行[dakou] meandering
蛇足[dasoku] redundancy