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

馬鈴薯[jagaimo] potato (Solanum tuberosum)
真薯[shinjo] fish cake
自然薯[jinenjo] Japanese yam (Dioscorea japonica)
唐薯[karaimo] sweet potato (Ipomoea batatas)
長薯[nagaimo] Chinese yam (Dioscorea batatas)

甘薯[kansho] sweet potato
薯蕷[tororo] grated yam
男爵薯[danshakuimo] Irish Cobbler potato
ジャガタラ薯[jagataraimo] potato (Solanum tuberosum)