How to Pronounce "act up"
expression
ˈækt/ /ˈəp
AKT-uhp
ˈækt/ /ˈʌp
AKT-up
Definition
To behave badly or cause trouble, especially about people (often children); also, to not work properly, especially for machines or body parts.
IPA Transcription
American English
ˈækt/ /ˈəp
British English
ˈækt/ /ˈʌp
Simplified Pronunciation
US
AKT-uhp
UK
AKT-up
Listen in Context
My computer sometimes acts up when it's too hot.
The kids started to act up during dinner.
My stomach acted up after I ate too much candy.
If your phone keeps acting up, maybe you should get it checked.