die Kralle
claw
The sharp, curved horn-like nail at the end of the toes of predators, birds, and reptiles.
Die Katze fuhr ihre Krallen aus, als der Hund zu nahe kam.
The cat extended its claws when the dog came too close.

claw
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claw
The sharp, curved horn-like nail at the end of the toes of predators, birds, and reptiles.
Die Katze fuhr ihre Krallen aus, als der Hund zu nahe kam.
The cat extended its claws when the dog came too close.

The noun 'die Kralle' (claw) is closely related to the verb 'krallen' (to claw/grab). 'Sich etwas krallen' means to grab something quickly and greedily.
Der Vogel krallte sich an dem Ast fest.
The bird clung to the branch with its claws.
The context makes clear what kind of 'Kralle' (claw) is meant. Is it about an animal (eagle, cat), a machine (crane, excavator), or colloquially about a person's hand?
Der Adler packte die Beute mit seinen Krallen.
The eagle grabbed the prey with its claws.
In connection with animals, typical expressions are 'die Krallen ausfahren' (to extend the claws) and 'die Krallen einziehen' (to retract the claws).
Der Bär hinterließ mit seinen Krallen tiefe Spuren im Baum.
The bear left deep marks in the tree with its claws.
When 'Kralle' (claw) is used for a human hand, it is always colloquial and has a negative, often greedy or rough meaning.
Er streckte seine gierigen Krallen nach dem letzten Stück Kuchen aus.
He stretched out his greedy claws toward the last piece of cake.
hand
'die Hand' and 'die Kralle' can both have to do with grasping. 'Hand' is the neutral word for the human body part. 'Kralle' actually means the sharp, curved nail of animals such as birds or predators. For a human hand, 'Kralle' is used only colloquially and usually in a derogatory way, for example when someone grabs something roughly or greedily. Learners should therefore not simply use 'Kralle' for 'Hand'. For humans, 'Hand' is almost always the correct neutral choice.

Der Papagei hält den Ast mit seinen Krallen fest.
The parrot holds the branch tightly with its claws.
Vor dem Termin hält sie den Zettel fest in der Hand.
Before the appointment, she holds the note firmly in her hand.