Definition of ground rule in English:

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ground rule


1 (usually ground rules) A basic principle: some ground rules for assessing new machines
More example sentences
  • Before an interview, Johnson laid down the ground rule that he didn't want to talk about his Seattle days.
  • My first ground rule is always to tell the truth.
  • The ground rule on that subject would be never to make familiarity with one's earlier works necessary for enjoying or appreciating the current one.
2 Baseball A rule relating to the limits of play on a particular field.
Example sentences
  • He learned the hard way about a Wrigley Field ground rule.
  • By establishing ground rules, the playing field can be leveled for all participants.
  • Under the ground rules of the Astrodome, the ball was in play.

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