Mammoth Uncensored Word List:
61 words ending with il, 9 letters long

acidophil anglophil arctophil audiophil blackmail blacktail broadtail broomtail caprifoil captopril charbroil checkrail chokecoil courbaril daredevil disentail dustdevil eightfoil enalapril envermeil greenmail guardrail harestail horsetail hydrofoil hygrophil interrail minoxidil mousetail multifoil myofibril necrophil negrophil nonfossil nonpareil nonretail ombrophil overcivil photophil pseudaril rotorsail scaletail scotophil screwnail sharptail shavetail shirttail shorttail slavophil sprigtail spritsail subfossil supercoil swordtail thumbnail tormentil turbosail undersoil verapamil voicemail whitetail