act up
phrasal verb·1 sense·particle up
Meanings
Behave badly or stop working properly
Why “up”? Something normal is disturbed. Feelings, systems, machines, or behavior become noisy, troubled, or out of control.
“My laptop is acting up again.”
“The children acted up during dinner.”
Don't confuse with
Act up means behave badly or stop working properly. Act out means express feelings through aggressive or attention-seeking behaviour.
Test yourself
“My laptop is acting up again.” What does it mean?
Nearby in the meaning map
Sink In connects verbs by particle pattern, contrast pairs, and shared base verbs.
act out
A contrast learners often mix up
Perform a scene, story, or plan with actions; Express feelings through aggressive or attention-seeking behaviour
blow up
Same up pattern: trouble
Explode or be destroyed by an explosion; Inflate something by filling it with air; Suddenly become very angry; Enlarge a photograph or image; (of a storm or argument) develop quickly into something serious
cut up
Same up pattern: trouble
Cut something into smaller pieces; Make someone deeply upset or distressed; Behave in a wild or noisy way to attract attention; Overtake another driver suddenly and dangerously
dig up
Same up pattern: trouble
Remove something from the ground by digging; Discover information that was hidden or forgotten; Damage a surface by tearing into it; Mention or revive something embarrassing from the past
keep up
Same up pattern: trouble
Continue at the same level or rate; Move at the same speed as someone else; Stay informed about something current; Prevent someone from going to bed or sleeping; Prevent something from falling down; Maintain pretences, an appearance or a habit; Match the social or financial standard of others
kick up
Same up pattern: trouble
Cause a fuss or commotion
mess up
Same up pattern: trouble
Spoil or do something badly
muddle up
Same up pattern: trouble
Confuse two or more things, often by mistaking one for the other
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