to change something, such as a decision, judgment, or process so that it is the opposite of what it was before
reverse a decision/verdict/policy etc
The decision was reversed on appeal.
reverse a trend/process/decline etc
More changes are required to reverse the trend towards centralised power.
if a vehicle or its driver reverses, they go backwards [= back up American English]
car[intransitive and transitive]TTC especially British English
reverse out of/into etc
Bob reversed into a parking space.
reverse something into/out of something
I reversed the car into a side road.
to change around the usual order of the parts of something, or the usual things two people do
Our roles as child and guardian had now been reversed.
to turn something over or around, in order to show the back of it:
turn something over[transitive]
Reverse the paper in the printer.
5 American English
to change your opinion or position in an argument:
Suddenly, he reversed himself completely.
6 British EnglishTCT
to make a telephone call which is paid for by the person you are telephoning [= call collect American English]