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

巨いなる[ooinaru] big
巨かい[kyokai] ringleader
巨額[kyogaku] great sum
巨漢[kyokan] giant
巨艦[kyokan] large warship

巨岩[kyogan] huge rock
巨躯[kyoku] big frame
巨口[kyokou] big mouth
巨材[kyozai] big timber
巨財[kyozai] huge fortune

価額[kagaku] valuation
額が少ない[gakugasukunai] insufficient (money, etc.)
額ぶち[gakubuchi] frame (e.g. picture frame, decorative door frame, etc.)
額面[gakumen] face value

額面割れ[gakumenware] drop below par
割当額[wariategaku] allotment
巨額[kyogaku] great sum
金額[kingaku] amount of money