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

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

委細面談[isaimendan] details when I see you
縁談[endan] marriage proposal
下相談[shitasoudan] preliminary consultation
画談[gadan] discussions on art and painting
会談[kaidan] conversation

怪談[kaidan] ghost story
歓談[kandan] pleasant talk
閑談[kandan] quiet conversation
休戦会談[kyuusenkaidan] armistice conference
軍談[gundan] war story