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

丸柱[marubashira] column
火柱[hibashira] pillar of fire
蚊柱[kabashira] mosquito swarm
貝柱[kaibashira] adductor muscle
巻柱[makibashira] gold-covered woodwork at a temple in Hiraizumi

魂柱[konchuu] sound post (violin, etc.)
支柱[shichuu] prop
斜角柱[shakakuchuu] oblique prism
人柱[hitobashira] human pillar
水銀柱[suiginchuu] column of mercury

お歯黒[ohaguro] tooth blackening
暗黒期[ankokuki] eclipse period
暗黒時代[ankokujidai] Dark Ages
暗黒大陸[ankokutairiku] Dark Continent (i.e. Africa)
黒い[kuroi] black

黒い霧[kuroikiri] thick fog
黒くする[kurokusuru] to blacken
黒ずむ[kurozumu] to blacken
黒っぽい[kuroppoi] dark