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

オブジェクト指向[obujekutoshikou] object-oriented
オブジェクト指向言語[obujekutoshikougengo] object-oriented language
ダイヤの指輪[daiyanoyubiwa] diamond ring
医者の指図[ishanosashizu] doctor's mandate
一指[isshi] finger

一指当たり[ichiyubiatari] span
卸売物価指数[oroshiuribukkashisuu] wholesale price index
眼指[manazashi] (a) look
屈指[kusshi] leading
結婚指輪[kekkonyubiwa] wedding ring

横座標[ouzahyou] abscissa
音標文字[onpyoumoji] phonetic symbols
確率標本[kakuritsuhyouhon] random sample
極座標[kyokuzahyou] polar coordinates
元標[genpyou] zero milestone

座標系[zahyoukei] coordinate system
座標軸[zahyoujiku] coordinate axis
座標変換[zahyouhenkan] coordinate transformation
指標[shihyou] index

オムツ気触れ[omutsukabure] diaper rash
お気の毒[okinodoku] pitiful
御天気[otenki] weather
利かん気[kikanki] daring
さり気ない[sarigenai] nonchalant

哀れ気[awarege] sad
悪気[warugi] ill will
圧搾空気[assakukuuki] compressed air
圧縮空気[asshukukuuki] compressed air
圧電気[atsudenki] piezoelectricity

悪質[akushitsu] bad quality
悪質化[akushitsuka] worsening
異質[ishitsu] different (quality, nature)
音楽の素質[ongakunososhitsu] aptitude for music
音質[onshitsu] tone quality

可塑物質[kasobusshitsu] plastics
画質[gashitsu] image quality (film, video, etc.)
灰白質[kaihakushitsu] gray matter
企業体質[kigyoutaishitsu] financial content
器質的[kishitsuteki] organic