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

黄道十二宮[koudoujuunikyuu] twelve signs of the zodiac
丸十[marujuu] cross in a circle
五十音[gojuuon] the Japanese syllabary
五十音順[gojuuonjun] the syllabary order
五十三次[gojuusantsugi] the 53 Toukaidou stages

五十年祭[gojuunensai] jubilee
五十歩百歩[gojuppohyappo] six of one and a half dozen of the other
五十路[isoji] age fifty
三十戸[sanjikko] thirty houses
三十三所[sanjuusansho] any of a number of sets of thirty-three holy places enshrining Avalokitesvara (esp. those comprising a popular pilgrimage in the Kinki region)

彼の方[anokata] that gentleman (lady)
此方[kochira] this way (direction close to the speaker or towards the speaker)
此方[konata] this way
其方[sochira] that way (direction distant from the speaker, close to the listener)
何方へ[dochirahe] how are you?

何方も[dochiramo] both
何方様[dochirasama] who
何方付かず[docchitsukazu] gray area
何方でも[donatademo] anyone
遣り方[yarikata] manner of doing

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