linchpin

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(linch-pin) 2 syllables

Definition

noun. 1 pin inserted through an axletree to hold a wheel on; 2 a central cohesive source of support and stability

Example Sentence

The mechanic replaced the linchpin. Spelled as one word.

Synonyms

pin to hold a wheel on; pin on an axletree; anchor; mainstay; keystone

Antonyms

wheel

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linchpin
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Rhymes

  • linchpin