lynchpin
/ˈlɪntʃpɪn/
noun
- A person or thing that is essential to the success or existence of something; the most important part holding everything together.
- The star player is the lynchpin of the team's offense.
- The new software became the lynchpin of the company's digital transformation.
- Good communication is the lynchpin of a healthy relationship.
- A metal pin used to keep a wheel or other part in position on an axle.
- He checked each lynchpin to make sure the cart was safe to drive.
- Without the lynchpin, the axle would slide right off.
- The mechanic replaced the rusty lynchpin on the wagon wheel.
Synonyms