Definition of change-up in English:

change-up

noun

Baseball
  • A deceptively slow pitch intended to throw off the batter's timing.

    change
    • ‘His curveball doesn't drop much, his change-up stays pretty flat, and he has next to no movement on his ‘fastball.’’
    • ‘But I learned that I needed a change-up and that's been a big pitch for me.’
    • ‘He throws four pitches - fastball, curveball, slider and change-up - and he throws them around the plate.’
    • ‘Both pitchers throw a fastball, curveball, and a change-up.’
    • ‘He still must improve his change-up but has an above-average fastball and a good curve.’

Pronunciation:

change-up

/ˈCHānjˌəp/