massivechange

noun
UK /ˈmæsɪv tʃeɪndʒ/
US /ˈmæsɪv tʃeɪndʒ/

A massive change is a very big change that makes things look or work very differently.

The new park was a massive change for our town.


OTHER MEANINGS

2. A complete switch in how something is done.

Switching from paper to computers was a massive change for the office.

3. A big difference in someone's life or habits.

Moving to a new country was a massive change for her.

4. A large change in a plan or idea.

The team made a massive change to its game plan.