Compounds of 研ぐ

• 研ぐ
  (v5g,vt) (1) to sharpen
  to hone
  to whet
  to grind
  (2) to wash (rice)
  (3) to scour
  to polish
  to burnish
  (P)
• 牙を研ぐ
  (exp,v5g) to sharpen one's fangs
• 爪を研ぐ
  (exp,v5g) to sharpen one's claws