Linchpin
Pronunciation: /ˈlɪntʃˌpɪn/
Linchpin (noun)
- A person or thing that is essential for keeping something together or functioning well.
Examples
- The manager is the linchpin of the team's success.
- She is the linchpin of our team, holding everything together.
Common collocations: be a linchpin, serve as a linchpin, identify a linchpin