Buy versus Bye versus By

What is the Difference Between Bye and By?

When to Use Bye

Bye is short for the word goodbye, which is a way to say farewell. A person who is saying farewell to a woman named Felicia, for instance, might say “Bye, Felicia.”


Bye can also refer to an uncontested round in a tournament, wherein a competitor may advance without having to win a match. This meaning came from lawn tennis, and is now widely used in the world of sports.

When to Use By

By is an adverb and a preposition.

As an adverb, by means past, as a bullet might fly past someone’s head.

For example,