Literal meaning:
* After a long day of hiking, my boots were worn out and my feet were sore.
* The old couch was worn out and needed to be replaced.
* The fabric on the dress was so worn out it was almost transparent.
Figurative meaning:
* I was worn out after a long day at work and just wanted to go to bed.
* The argument was worn out and neither of them had anything new to say.
* The joke was so worn out it made me cringe.
* The old technology was worn out and needed an upgrade.
You can also use "worn out" in combination with other words to express different shades of meaning:
* Worn out and tired: "I was so worn out and tired that I couldn't even think straight."
* Worn out and tattered: "The old flag was worn out and tattered but still flew proudly."
* Worn out and faded: "The photograph was worn out and faded but still held precious memories."