base + ball

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Pronunciation

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Singular
baseball

Plural
baseballs

 
A game of baseball
 
A baseball
  1. (uncountable) A sport where you try to hit a ball so that you can run to four bases, causing a run. The team with the most runs after nine or more innings wins.
    The New York Yankees are a baseball team.
  2. (countable) A ball used in the sport of baseball.
    The pitcher threw the baseball as hard as he could.