蔓延る[habikoru] to spread
延いては[hiiteha] not only ... but also
圧延[atsuen] rolling
圧延機[atsuenki] rolling machine
圧延工場[atsuenkoujou] rolling mill

圧延鋼[atsuenkou] rolled steel
雨天順延[utenjunen] rescheduled in case of rain
延び延び[nobinobi] stretching
延び延びになる[nobinobininaru] to be delayed
延べ[nobe] futures

安全期[anzenki] safe period
暗黒期[ankokuki] eclipse period
一期[ichigo] one's life time
一期[ikki] one term
一期一会[ichigoichie] once-in-a-lifetime encounter (hence should be cherished as such)

一周期[isshuuki] period (in astronomy)
一定期間[itteikikan] fixed interval
延期[enki] postponement
延期になる[enkininaru] to be postponed
沖積期[chuusekiki] alluvial period