御世辞[oseji] flattery
御世話になる[osewaninaru] to receive favor (favour)
一世紀[isseiki] century
永世[eisei] eternity
永世中立[eiseichuuritsu] permanent neutrality

永世中立国[eiseichuuritsukoku] permanent neutral country
厭世[ensei] pessimism
厭世家[enseika] pessimist
厭世観[enseikan] pessimistic view of life
厭世主義[enseishugi] pessimism

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

ガリア戦記[gariasenki] History of the Gallic Wars
ゲリラ戦[gerirasen] guerrilla warfare
セールス戦略[seerususenryaku] sales strategy
ベトナム戦争[betonamusensou] Vietnam war
マーケティング戦略[maaketingusenryaku] marketing strategy

悪戦[akusen] hard fighting
悪戦苦闘[akusenkutou] hard fighting
一回戦[ikkaisen] first game
一戦[issen] battle
厭戦[ensen] war weariness

医界[ikai] medical world
医学界[igakukai] medical world
黄金世界[ougonsekai] utopia
下界[gekai] this world
花柳界[karyuukai] red-light district

界隈[kaiwai] neighborhood
界面[kaimen] interface
各界[kakkai] each field
学界[gakkai] academic or scientific world
官界[kankai] bureaucracy