linchpin

[ linch-pin ]

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Part of Speech noun

Origin + Etymology

Late middle English from Old English lynis (in the sense ‘linchpin’) + pin

Synonyms

center
core
cornerstone

Antonyms

unavailable

Definition

a person or thing vital to an enterprise or organization

Example

Rachel is the linchpin of the operation and the business could not go on without her.

Usage Over Time

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Usage Over Time

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[ moh-zey-ik ]

a picture or decoration made of small, usually colored pieces of inlaid stone, glass, etc.

demarcate

[ dih-mahr-keyt ]

to determine or mark off the boundaries or limits of

innocuous

[ ih-nok-yoo-uhs ]

not harmful or injurious; harmless

concatenate

[ kon-kat-n-eyt ]

link (things) together in a chain or series

repugnant

[ ri-puhg-nuhnt ]

extremely distasteful; unacceptable

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[ zahr ]

a person of great power

tempestuous

[ tem-pes-choo-uhs ]

tumultuous; turbulent

instauration

[ in-staw-rey-shuhn ]

renewal or restoration

viscid

[ vis-id ]

having a glutinous consistency; sticky; adhesive; viscous