independent noun, in compounds
When a plant or an animal dies you have to discard it. You can't just keep it sitting around the house after death, that's weird.
This has the same reading as the kanji you learned, meaning you know the reading!
The manuscript was rejected the other day.
I'm sorry, but I'm afraid you're going to have to discard this idea for now.
The singer is said to have died on December 1, 2015, but the facts are not clear.