a sharp curved nail on an animal, bird, or some insects:
The cat dug his claws into my leg.
if someone gets their claws into another person, they influence them in a harmful way:
The thought of Eloise getting her claws into the child made his blood run cold.
to say unpleasant things about someone in order to upset them:
Wait till the papers get their claws into him.
the curved end of a tool or machine, used for lifting things:
a claw hammer