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

一瞬[isshun] moment
一瞬間[isshunkan] moment
瞬く[matataku] to twinkle (e.g. stars)
瞬間[shunkan] moment
瞬間電断[shunkandendan] power flicker

瞬刻[shunkoku] moment
瞬時[shunji] moment
瞬断[shundan] power flicker
瞬き[mabataki] blink (of eyes)
瞬く間に[matatakumani] in the twinkling of an eye