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

ノーベル賞[nooberushou] Nobel prize
ノーベル平和賞[nooberuheiwashou] Nobel peace prize
１等賞[ittoushou] first place prize
恩賞[onshou] reward
佳賞[kashou] approval

勧賞[kanshou] praise and encouragement
観賞[kanshou] admiration
鑑賞[kanshou] appreciation (e.g. of art)
激賞[gekishou] enthusiastic praise
懸賞[kenshou] offering prizes