What is the meaning of the word "farewell"?

Which phrase is commonly used to say farewell informally?

What is a common tradition at farewell parties?

What is a popular song for farewells?

What is a fun game at farewell parties?

What color is commonly used for farewell decorations?

How do people stay in touch after a farewell?

What do people write in a farewell card?

What do people take at a farewell party?

What do people give at a farewell party?