永久歯[eikyuushi] permanent tooth
永久性[eikyuusei] permanency
永久脱毛[eikyuudatsumou] removing hair permanently
久しい[hisashii] long
久しく[hisashiku] for a long time

久し振りに[hisashiburini] after a long time
久し振り[hisashiburi] a long time (since the last time)
久懐[kyuukai] long-cherished hope
久慈目[kujime] spotbelly greenling (Hexagrammos agrammus)
久方[hisakata] sky

迂闊[ukatsu] careless
快闊[kaikatsu] cheerful
天空海闊[tenkuukaikatsu] the open sky and the serene sea
久闊[kyuukatsu] not having met or contacted someone for a long time
寛闊[kankatsu] generous

闊達[kattatsu] openhearted
闊歩[kappo] striding
宏闊[koukatsu] spacious
横行闊歩[oukoukappo] swaggering
闊葉樹[katsuyouju] broad-leaved tree