catalyst
nounUK /ˈkæt.əl.ɪst/
US /ˈkæt̬.əl.ɪst/
A catalyst is something that makes a change happen faster.
The new teacher was a catalyst for change at the school.
OTHER MEANINGS
2. A substance that speeds up a chemical reaction without being used up itself.
Enzymes act as catalysts in the body.
3. A person or event that causes something important to happen.
Her speech was the catalyst for the whole movement.
4. Something that helps two people or groups start talking or working together.
The festival served as a catalyst for new friendships.