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

鼺鼠[momi] giant flying squirrel (Petaurista leucogenys)
鼯鼠[momonga] small Eurasian flying squirrel (Pteromys momonga)
熬海鼠[iriko] dried sea slug
海鼠[namako] sea cucumber (Holothuroidea spp.)
栗鼠[risu] squirrel (excluding flying squirrels)

どぶ鼠[dobunezumi] brown rat (Rattus norvegicus)
黒鼠[kuronezumi] black rat
鼠の嫁入り[nezuminoyomeiri] light shower
鼠疫[soeki] plague

鼯鼠[musasabi] giant flying squirrel (Petaurista leucogenys)
鼯鼠[momonga] small Eurasian flying squirrel (Pteromys momonga)
アメリカ鼯鼠[amerikamomonga] southern flying squirrel (Graucomys volans)
蝦夷鼯鼠[ezomomonga] Pteromys volans orii (subspecies of the Siberian flying squirrel, endemic to Hokkaido)

大陸鼯鼠[tairikumomonga] Siberian flying squirrel (Pteromys volans)
大アメリカ鼯鼠[ooamerikamomonga] northern flying squirrel (Glaucomys sabrinus)
袋鼯鼠[fukuromomonga] sugar glider (species of flying phalanger, Petaurus breviceps)