thieves is thief's Plural Form

thief

US [θif]
UK [θiːf]
  • n.小偷;〈口〉(使蜡外流的)蜡烛心结的烛花
  • Web盗贼;群贼;夜夜夜贼
Plural Form:thieves  
n.
1.
贼,小偷
2.
〈口〉(使蜡外流的)蜡烛心结的烛花