silentcause

noun
UK /ˈsaɪlənt kɔːz/
US /ˈsaɪlənt kɔːz/

A silentcause is a quiet reason that makes something happen without making any noise.

The teacher said the silentcause of the happy class was everyone being kind.


OTHER MEANINGS

2. A person who quietly helps something good happen without wanting attention.

Grandma was the silentcause of the whole neighborhood picnic.

3. A secret reason that nobody talks about.

The silentcause of the team's win was all those extra practices.

4. Something small and quiet that starts a big change.

A tiny smile can be the silentcause of a new friendship.