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

意気消沈[ikishouchin] depressed in spirits
雲散霧消[unsanmushou] vanishing like mist
つや消し[tsuyakeshi] frosted (glass)
解消[kaishou] cancellation
薫蒸消毒[kunjoushoudoku] fumigation

個人消費[kojinshouhi] consumer spending
姿を消す[sugatawokesu] to disappear
取消す[torikesu] to cancel
消える[kieru] to go out
消え果てる[kiehateru] to vanish completely