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

一昔[hitomukashi] ages
一昔前[hitomukashimae] long ago
往昔[ouseki] ancient times
古昔[koseki] ancient times
昔式[mukashishiki] old fashioned

昔日[sekijitsu] old days
昔風[mukashifuu] old fashioned
昔話[mukashibanashi] folklore
大昔[oomukashi] great antiquity