Literal:
* The injured hiker couldn't move his broken limb.
* Monkeys swing through the trees using their powerful limbs.
* The doctor examined the child's limbs for any signs of bruising.
Figurative:
* The artist's imagination was a fertile limb of creativity.
* The company's new product line was a risky limb to branch out into.
* The government's decision to raise taxes was a controversial limb to take.
Idioms:
* She was so tired she could barely lift a limb.
* He had to learn to walk again after losing a limb in the accident.
* Don't go out on a limb without thinking it through carefully.
These are just a few examples, and the word "limb" can be used in many other ways depending on the context.