round-rob·in | \ˈrau̇nd-ˌrä-bən \

Definition of round-robin 

1a : a written petition, memorial, or protest to which the signatures are affixed in a circle so as not to indicate who signed first

b : a statement signed by several persons

c : something (such as a letter) sent in turn to the members of a group each of whom signs and forwards it sometimes after adding comment

3 : a tournament in which every contestant meets every other contestant in turn

4 : series, round

First Known Use of round-robin

1698, in the meaning defined at sense 1a

History and Etymology for round-robin

from the name Robin

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The first known use of round-robin was in 1698

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English Language Learners Definition of round-robin

sports : a competition in which every player or team plays once against every other player or team

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