一意専心[ichiisenshin] single-mindedly
高専[kousen] technical college
歯内療法専門医[shinairyouhousenmoni] endodontist
耳鼻咽喉専門医[jibiinkousenmoni] ear, nose and throat specialist
住専[juusen] housing-loan corporation

専ら[moppara] wholly
専横[senou] arbitrariness
専科[senka] specialized course
専業[sengyou] special occupation
専攻[senkou] major subject

印章[inshou] stamp
階級章[kaikyuushou] rank insignia
楽章[gakushou] (musical) movement
徽章[kishou] medal
旧章[kyuushou] ancient laws

勲章[kunshou] decoration
憲章[kenshou] charter
肩章[kenshou] shoulder strap
周章てる[awateru] to become confused (disconcerted, disorganized, disorganised)
校章[koushou] school badge

一門[ichimon] family
陰門[inmon] (female) genitalia
開門[kaimon] opening gate
凱旋門[gaisenmon] arch of triumph
冠木門[kabukimon] gate with a crossbar

関門[kanmon] barrier
玉門[gyokumon] beautifully decorated gate (euph. for female genitalia)
桑門[soumon] monk
軍門[gunmon] camp gate