Definitions of claw:

• noun:   a bird's foot that has claws
• noun:   sharp curved horny process on the toe of a bird or some mammals or reptiles
• noun:   a structure like a pincer on the limb of a crustacean or other arthropods
• noun:   a mechanical device that is curved or bent to suspend or hold or pull something
• verb:   attack as if with claws

  Example: "The politician clawed his rival"

• verb:   clutch as if in panic

  Example: "She clawed the doorknob"

• verb:   scratch, scrape, pull, or dig with claws or nails
• verb:   move as if by clawing, seizing, or digging

  Example: "They clawed their way to the top of the mountain"

• name:  A surname (very rare: popularity rank in the U.S.: #23149)