遺失[ishitsu] loss
遺失物[ishitsubutsu] lost article
一失[isshitsu] disadvantage (defect, error)
一得一失[ittokuisshitsu] gaining some and losing some
栄養失調[eiyoushicchou] malnutrition

過失[kashitsu] error
見失う[miushinau] to lose sight of
失う[ushinau] to lose
失する[shissuru] to lose
失せる[useru] to disappear

恐らく[osoraku] perhaps
恐れ[osore] fear
恐れ戦く[osoreononoku] to tremble with fear
恐れ入る[osoreiru] to be sorry
恐ろしい[osoroshii] terrible

恐喝[kyoukatsu] blackmail
恐慌[kyoukou] panic
恐妻家[kyousaika] hen-pecked husband
恐妻病[kyousaibyou] wife-phobia
恐縮[kyoushuku] feeling obliged

一敗[ippai] one defeat
完敗[kanpai] complete defeat
規則を敗る[kisokuwoyaburu] to break the rules
再敗[saihai] second defeat
失敗[shippai] failure

失敗は成功の基[shippaihaseikounomoto] failure teaches success
勝敗[shouhai] victory or defeat
成敗[seibai] punishment
惜敗[sekihai] regrettable defeat
全敗[zenpai] complete defeat