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

鯰髭[namazuhige] drooping moustache
瓢箪鯰[hyoutannamazu] (person) slippery as an eel
鯰号[namazugou] earthquake simulator
電気鯰[denkinamazu] electric catfish (any species of family Malapteruridae, esp. species Malapterurus electricus)

痺れ鯰[shibirenamazu] electric catfish (any species of family Malapteruridae, esp. species Malapterurus electricus)
逆さ鯰[sakasanamazu] upside-down catfish (Synodontis nigriventris)
琵琶湖大鯰[biwakooonamazu] Lake Biwa catfish (Silurus biwaensis)
ヨーロッパ大鯰[yooroppaoonamazu] Wels catfish (Silurus glanis)