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

断トツ[dantotsu] the best
一刀両断[ittouryoudan] cutting in two with a single stroke
引っ張り剪断強度[hipparisendankyoudo] peel strength (conductor from substrate)
英断[eidan] resolution
横断[oudan] crossing

横断歩道[oudanhodou] pedestrian crossing
果断[kadan] decisive
間断[kandan] break in time
強制中断[kyouseichuudan] forcing to a stop
禁断[kindan] prohibition