Meaning of new ball in English:

new ball

Pronunciation /ˌnjuː ˈbɔːl/

noun

Sport
  • A previously unused ball, specifically (a) (with the) one brought into use in cricket at the beginning of an innings or available for the fielding side to use after a prescribed number of overs; (b) (in plural) a set of balls brought into use in a tennis match after a prescribed number of games.

    The hardness and shine of the new cricket ball allows bowlers to generate greater bounce, swing, and movement off the seam, making batting more difficult.

Origin

Early 20th century; earliest use found in E. M. Forster (1879–1970), novelist and essayist. From new + ball.