一元[ichigen] unitary
一元化[ichigenka] unification
一元的[ichigenteki] monistic
一元論[ichigenron] monism
一次元[ichijigen] one dimensional

一新紀元[isshinkigen] new era
隠元[ingen] beans
隠元豆[ingenmame] common bean (Phaseolus vulgaris)
家元[iemoto] head of a school (of music, dance)
火の元[hinomoto] origin of fire

健康[kenkou] health
健康児[kenkouji] healthy child
健康者[kenkousha] healthy person
健康証明書[kenkoushoumeisho] health certificate
健康診断[kenkoushindan] physical examination

健康体[kenkoutai] healthy body
健康地[kenkouchi] healthy place
健康的[kenkouteki] hygienic
健康美[kenkoubi] physical beauty
健康不安[kenkoufuan] poor health