Claw
Nail, Talon, Hoof
noun
The kanji and the word are exactly the same. That means they share meanings as well, though it adds a few more meanings as well, like nail or talon or hoof or really any hard thing on the ends of fingers or feet.
The reading takes the second 爪 reading, つめ.
彼女の右の小指の爪の長さはなんと六メートルもあります。
Her right pinky nail is six meters long.