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

蜻蜓[tonbou] dragonfly
蜻蜓[yanma] darner (any dragonfly of family Aeshnidae)
鬼蜻蜓[oniyanma] Siebold's dragonfly (Anotogaster sieboldii)

銀蜻蜓[ginyanma] lesser emperor (species of dragonfly, Anax parthenope)
団扇蜻蜓[uchiwayanma] Sinictinogomphus clavatus (species of clubtail dragonfly)

竹蜻蛉[taketonbo] small wooden Japanese toy that flies when spun between the palms of one's hands
蜻蛉返り[tonbogaeri] somersault
蜻蛉[fuyuu] mayfly
蜻蜓[tonbou] dragonfly
尻切れ蜻蛉[shirikiretonbo] leaving unfinished

塩辛蜻蛉[shiokaratonbo] Orthetrum albistylum speciosum (subspecies of white-tailed skimmer)
糸蜻蛉[itotonbo] damselfly
赤蜻蛉[akatonbo] (small) red dragonfly
麦藁蜻蛉[mugiwaratonbo] dragonfly
極楽蜻蛉[gokurakutonbo] happy-go-lucky fellow

データの先頭[deetanosentou] beginning of data
一頭[ittou] one large animal (horses, cattle, etc.)
一頭立て[ittoudate] one-horse (carriage)
咽頭[intou] pharynx
駅頭[ekitou] station

音頭[ondo] leading a group of people
会頭[kaitou] society president
街頭[gaitou] in the street
核弾頭[kakudantou] nuclear warhead
巻頭[kantou] opening page of book

馬酔木[asebi] Japanese andromeda (Pieris japonica)
馬鈴薯[jagaimo] potato (Solanum tuberosum)
じゃじゃ馬[jajauma] restive horse
玖馬[kyuuba] Cuba
トロイの木馬[toroinomokuba] Trojan horse

巴奈馬[panama] Panama
馬克[maruku] mark
羅馬字[roomaji] Latin alphabet
ワープロ馬鹿[waapurobaka] someone whose kanji-writing ability has suffered due to overreliance on the kana-to-kanji conversion systems used to input Japanese text on a computer
愛馬[aiba] favourite horse

鬼利死丹[kirishitan] early Japanese Christianity (from the later Muromachi period)
悪餓鬼[warugaki] brat
悪鬼[akki] evil spirit
餓鬼[gaki] brat
餓鬼大将[gakidaishou] boss of the children (in the neighbourhood) (neighborhood)

餓鬼道[gakidou] hungry ghost (preta) realm
鬼ごっこ[onigokko] game of tag
鬼火[onibi] will-o'-the-wisp
鬼才[kisai] wizard