Definition of Linchpin

a person/thing vital to holding something together

Examples of Linchpin in a sentence

Brushing and flossing your teeth on a regular basis is the linchpin of good oral hygiene.  🔊

With 80 percent of the company’s sales coming from online orders, the boutique’s website was its linchpin.  🔊

Grandmother is the linchpin of our tightknit family and holds our crew together with her love.  🔊

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