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

暗躍[anyaku] secret manoeuvering
一躍[ichiyaku] (at) one bound
活躍[katsuyaku] activity (esp. energetic)
欣喜雀躍[kinkijakuyaku] jump up for joy
雀躍[jakuyaku] leaping for joy

跳躍[chouyaku] jump
飛躍[hiyaku] leaping
飛躍的[hiyakuteki] rapidly
躍り掛かる[odorikakaru] to spring at or upon
躍り込む[odorikomu] to jump into

ジェット推進研究所[jettosuishinkenkyuusho] Jet Propulsion Laboratory
一進一退[isshinittai] now advancing and now retreating
一歩前進[ippozenshin] (a) step forward
栄進[eishin] promotion
詠進[eishin] presentation of poem (to court)

仮進級[karishinkyuu] conditional promotion
勘進[kanshin] reporting after careful investigation
勧進[kanjin] temple solicitation
勧進元[kanjinmoto] backer
勧進帳[kanjinchou] temple solicitation book