思案 [しあん] - (n,vs) thought, consideration, meditation, ponder. 思案に暮れる [しあんにくれる] - (exp) to be lost in thought. 思案に余る [しあんにあまる] - (exp) to be at wit's end, to be at a loss for what to do. 思案を凝らす [しあんをこらす] - (exp) to rack one's brains (i.e. for a solution). 思案投げ首 [しあんなげくび] - at one's wits end. 思案投首 [しあんなげくび] - be at one's wit's end. 私案 [しあん] - private plan, one's own plan. 試案 [しあん] - tentative.