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

のめり込む[nomerikomu] to be completely absorbed in
圧し込む[heshikomu] to push into
意気込む[ikigomu] to be enthusiastic about
引込む[hikikomu] to draw in
引摺り込む[hikizurikomu] to drag in

引っ込み[hikkomi] retreat
引込思案[hikkomijian] reserved
引っ込む[hikkomu] to draw back
引っ込める[hikkomeru] to draw in
運び込む[hakobikomu] to carry in

火縄銃[hinawajuu] matchlock
機関銃[kikanjuu] machine gun
軽機関銃[keikikanjuu] light machine gun
拳銃[kenjuu] pistol
元込め銃[motogomejuu] breechloader

叉銃[sajuu] stacked arms
催涙銃[sairuijuu] tear-gas gun
霰弾銃[sandanjuu] shotgun
自動小銃[jidoushoujuu] automatic rifle
重機関銃[juukikanjuu] heavy machine gun