topcause
nounUK /ˈtɒp.kɔːz/
US /ˈtɑːp.kɔːz/
The topcause is the biggest reason why something happens.
The topcause of the class party was that everyone finished their homework.
RELATED WORDS
OTHER MEANINGS
2. The most important person or thing that makes something happen.
She was the topcause of the team's big win.
3. The first or highest cause in a list of reasons.
Rain was the topcause on the list of why the game was canceled.
4. A main goal or purpose that drives an action.
Helping animals was the topcause behind the fundraiser.