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

悪水[akusui] undrinkable water
井戸水[idomizu] well water
一衣帯水[ichiitaisui] (being separated only by a) narrow strip of water
一水[issui] current (of water)
溢水[issui] inundation

飲水量[insuiryou] amount of drinking
飲料水[inryousui] drinking water
烏の行水[karasunogyouzui] quick bath
雲水[unsui] itinerant priest
塩化水素[enkasuiso] hydrogen chloride

洪牙利[hangarii] Hungary
洪水[kouzui] flood
洪積[kouseki] diluvial epoch (geol.)
洪積世[kousekisei] diluvial epoch
洪積層[kousekisou] diluvial formation (geol.)

洪大[koudai] great
日洪親善[nikkoushinzen] goodwill between Japan and Hungary
大洪水[daikouzui] heavy floods
洪基[kouki] foundation of a great project
洪業[kougyou] glorious achievement