Detailed Instructions: Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.
Q: If there are an odd number of competitors at any stage of a single-elimination tournament, one player is excused from play and continues on as if he had defeated his (nonexistent) opponent. This is called 'getting a by'. Or 'getting a bye'. Who knows, maybe it's even 'getting a buy', although I doubt it. My dictionary lists by as meaning 'pass' in card-games, so that suggests that spelling. On the other hand, the image of the referee looking from the single player, to the empty and undefended far side of the field, and then back to the player, shrugging, and saying 'Bye', is too strong to easily discard. Like other parts of the anatomy, everyone's got an opinion. I'm looking for a cite.
A:
Here's what you get: bye 1 |bi| noun 1 the transfer of a competitor directly to the next round of a competition in the absence of an assigned opponent. [From the New Oxford American Dictionary.]