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

御坊ちゃん[obocchan] son (of others)
いたずら坊主[itazurabouzu] mischievous boy
御坊[onbou] cemetery guard
丸坊主[marubouzu] close-cropped head
黒ん坊[kuronbou] dark-skinned person

桜ん坊[sakuranbo] (edible) cherry
三日坊主[mikkabouzu] one who can stick to nothing
次男坊[jinanbou] second son
照々坊主[teruterubouzu] paper doll to which children pray for fine weather (usu. white, and shaped like a Buddhist priest)
食いしん坊[kuishinbou] glutton

イ長調[ichouchou] A major
データビット長[deetabittochou] data bit length
ト長調[tochouchou] G major
ニ長調[nichouchou] D major
ハ長調[hachouchou] C major

ヘ長調[hechouchou] F major
ホ長調[hochouchou] E major
ロ長調[rochouchou] B major
委員長[iinchou] committee chairman
意味深長[imishinchou] with profound (often hidden) meaning