Meaning & use
lynchpin
A person or thing that is essential to holding together or making an organization or plan work.
See it in a sentence
The head engineer was the lynchpin of the entire construction project.
Trust between the two nations is the lynchpin of the peace agreement.
A note on using this word
Lynchpin is a common variant spelling of linchpin, which originally named the pin that keeps a wheel on its axle.
Words with a similar meaning
linchpinkeystone
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
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