bigpart
nounUK /ˈbɪɡ.pɑːt/
US /ˈbɪɡ.pɑːrt/
A bigpart is the most important piece of something.
The engine is the bigpart of the car that makes it go.
OTHER MEANINGS
2. The largest share of a group or amount.
A bigpart of the class chose to play soccer at recess.
3. A leading role in a play or movie.
She got the bigpart in the school play and practiced every day.
4. The most important reason something happens.
Rain was a bigpart of why the picnic was canceled.