どら息子[doramusuko] lazy son
愛息[aisoku] (your) beloved son
安息[ansoku] rest
一人息子[hitorimusuko] an only son
一息[hitoiki] one breath

因循姑息[injunkosoku] dilly-dallying and temporizing (temporising)
気息[kisoku] breathing
気息奄奄[kisokuenen] gasping for breath
休息[kyuusoku] rest
休息時間[kyuusokujikan] recess

一緒[issho] together
一緒くた[isshokuta] medley
一緒に[isshoni] together (with)
一緒にする[isshonisuru] to unite

下げ緒[sageo] cord for attaching a sword scabbard tightly to the obi
堪忍袋の緒が切れる[kanninbukuronoogakireru] to be out of patience
緒作[shosaku] various works
緒戦[shosen] beginning of hostilities