Jim: What are you studying again?
Kyle: Oncology. I told you.
Jim: Whoa! You know an Oncologist never gets to relax, always being on call.
Kyle: You're an idiot.
What does it mean for that chair in your room to exist? Does it exist because it is there in a physical form, because the material is there? Or does it exist because of its function, because the chair is there to be sat upon? What it means for something to exist is ontology, and both of these examples would work.
The study of cancerous diseases, in which one would study tumors and their causes, treatment, and cure.
Bob: Hey Jesse, do you have the notes from yesterday?
Jesse: Yeah Bob, but don't worry, we only learned about Oncology and how important it is in the world!
A process which involves a manufacture to develope a product (such as a car, video game console, TV) with the intentions of making it obsolete and/or non-functional after a certain period of time in order to sales and profit. It has benefits for a producer (repeat purchases) but disadvantages for the consumer(waste of time and money).
Man, I have to go to the store again; my toaster broke and it would cost more to fix it than to buy a new one. Freakin' planned obsolescence.