change up
Proposed by a contributor, not yet supported by evidence.
Sense 1
To throw a pitch at a much slower than expected speed.
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
To confuse someone by doing something unexpected or in an unexpected way.
làm cho ai đó bối rối bằng cách làm điều gì đó bất ngờ
Machine-translated — suggest a fix
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 3
To vary.
Register: informal
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “change up” mean?
To throw a pitch at a much slower than expected speed.
Is “change up” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.