御辞儀[ojigi] bow
威儀[igi] dignity
一儀[ichigi] an incident
儀式[gishiki] ceremony
儀式主義[gishikishugi] ritualism

儀式張る[gishikibaru] to formalize
儀式用[gishikiyou] ceremonial
儀装[gisou] ceremonial equipment
儀装馬車[gisoubasha] state carriage

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