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

青鷺[aosagi] grey heron (Ardea cinerea)
黒鷺[kurosagi] eastern reef heron
大鷺[daisagi] great (white) egret
白鷺[shirasagi] generic name for herons with all-white plumage (inc. egrets)
朱鷺[shuro] Japanese crested ibis (Nipponia nippon)

五位鷺[goisagi] black-crowned night heron (Nycticorax nycticorax)
若鷺[wakasagi] Japanese pond smelt (Hypomesus nipponensis)
鷺草[sagisou] fringed orchid
箆鷺[herasagi] common spoonbill (Platalea leucorodia)