Scrabble Dictionary

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Linchpin

ˈlɪn(t)ʃpɪn

Linchpin definitions

noun

Inflections:

linchpin linchpins lynchpin lynchpins

a person or thing vital to an enterprise or organization

"nurses are the linchpin of the National Health Service"

Synonyms:
heart nucleus nub hub kernel marrow meat
a pin passed through the end of an axle to keep a wheel in position

Synonyms:
centre focal point central point centre of attention hub pivot nucleus heart cornerstone linchpin kingpin bedrock basis anchor backbone cynosure