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

維持費[ijihi] maintenance costs
運動費[undouhi] campaign fund
加工費[kakouhi] processing cost
会費[kaihi] membership fee
学費[gakuhi] tuition

官費[kanpi] government expense
巨費[kyohi] great cost
共益費[kyouekihi] monthly fee for common areas of an apartment building (lighting, etc.)
教材費[kyouzaihi] teaching material fees
区費[kuhi] ward expenses