bigproject

noun
UK /ˈbɪɡ ˈprɒdʒ.ekt/
US /ˈbɪɡ ˈprɑː.dʒekt/

A big project is a large piece of work that takes a long time and lots of effort to finish.

Building the new school playground was a big project that took all summer.


OTHER MEANINGS

2. A large and important piece of schoolwork done over a long time.

For our big project, we made a model of a volcano.

3. A major job or plan that many people work on together.

The city started a big project to plant trees along every street.

4. Something that needs a lot of time, money, and teamwork to complete.

Cleaning up the whole beach was a big project for the volunteers.