1.Any series or sequence of actions.
2.A document circulated from one person to another in a group, often with comments added by each recipient.
3.A petition or similar document, in which the signatures are arranged in circular form in order to conceal the order of signing.
4.(Sports) A tournament in which each contestant plays against every other contestant at least once; a failure to win any contest does not result in elimination from the tournament. Contrasted with elimination tournament
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