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

御食い初め[okuizome] weaning ceremony
為初め[shisome] outset
為初める[shisomeru] to begin to do
仮初[karisome] temporary
業界初[gyoukaihatsu] the industry's first ...

月初め[tsukihajime] beginning of month
最初[saisho] beginning
初めに[hajimeni] to begin with (used as an introduction)
初めは[hajimeha] at first
手初めに[tehajimeni] at first

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