汚染源[osengen] source of pollution
音源[ongen] sound source
禍源[kagen] source of misfortune
供給源[kyoukyuugen] source of supply
経営資源[keieishigen] management resource

源氏物語[genjimonogatari] the Tale of the Genji
源泉[gensen] source
源流[genryuu] current-limiting
語源[gogen] word root

偽証罪[gishouzai] crime of perjury
偽造罪[gizouzai] forgery
脅迫罪[kyouhakuzai] criminal intimidation
軽犯罪[keihanzai] minor offence
原罪[genzai] original sin

功罪[kouzai] both good and bad
罪悪[zaiaku] crime
罪悪感[zaiakukan] feelings of guilt
罪科[zaika] offense