linch
pin
Plural
linchpins
1
pin inserted through an axletree to hold a wheel on
Synonyms:
2
a crucial element that holds something together or provides stability and support
- The linchpin of the team's defense, the goalkeeper made critical saves to secure victory.
- Her innovative ideas served as the linchpin of the company's successful marketing strategy.
- The treaty acted as the linchpin of diplomatic relations between the two nations, preventing conflict.
- The CEO's leadership was the linchpin of the organization, guiding it through times of change and growth.
- The bridge's central pillar served as the linchpin of the entire structure, supporting its weight and ensuring its stability.