Does the word "purchasement" exist? Hello, everyone. Wish you have a nice day! I have a few questions about "purchase". 1. Does the word "purchasement" exist? Chinese online dictionary told me it did. It's a noun, and means "buying something". There were some examples like "purchasement cost". But some foreign websites told me that I must spell it wrong. 2. How do you call the department in a company which is in charge of purchase? Purchase department or purchasing department? Thanks in advance. ( There is also a question. We Chinese people usually say "thank you in advance" (in Chinese) to a person who you turn to. Like: A: Could you help we with my homework tomorrow? B: Sure. A: Thank you in advance. Do English native speakers say it? Or there's another way to express the meaning? )