棄却[kikyaku] rejection
棄権[kiken] abstaining from voting
棄権者[kikensha] non-voter
棄言葉[sutekotoba] sharp parting remark
棄死[kishi] execution by decapitation, followed by public display of the body (form of punishment in ancient China)

棄世[kisei] death
棄背[kihai] giving up and turning back
棄約[kiyaku] breaking a promise
棄老[kirou] old person thrown away in the mountains
棄捐[kien] donation