Linchpin

/ˈlɪnt͡ʃˌpɪn/ noun, verb

noun, verb ·Moderate ·College level

Meaning at a glance

  • Primary sense: A pin inserted through holes at the end of an axle or shaft, so as to secure a wheel or shaft-mounted device.
  • Grammar: linchpin is listed as noun, verb.
  • Nearest alternatives: anchor, backbone, keystone, anchorman.
  • Useful contrasts: cog, detach, dismantle.
  • Usage evidence: The army is the linchpin of North Korean dictatorship.

How to use "linchpin"

  1. Start with the primary definition, then check the part of speech before placing the word in a sentence.
  2. Compare nearby synonyms to make sure "linchpin" carries the exact meaning, tone, and strength you need.
  3. Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.

Meaning check

  • Does the word fit the sentence's grammar?
  • Does it match the intended tone rather than only the dictionary definition?
  • Would a simpler synonym be clearer for the reader?
  • Is there enough surrounding context to prevent ambiguity?

Source and review context

This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "linchpin" in a final draft.

If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.

Before you rely on this definition

Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "linchpin" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "linchpin" with a nearby alternative so the final choice matches both meaning and reader expectation.

Compare nearby meanings

  • Use synonyms when you need a softer, stronger, simpler, or more specific word.
  • Use antonyms to check the boundary of the meaning and avoid accidental contrast.
  • Use the example sentence to confirm the word behaves naturally in context.
  • Keep the original wording when a replacement adds complexity without improving precision.

Definition decision workflow

1. Identify the role

Check whether "linchpin" is acting as noun, verb in your sentence. A definition is only useful when the grammar matches the way the word is being used.

2. Test the nearest option

Compare it with "anchor" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.

3. Confirm with context

Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.

Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.

Final meaning check

Before publishing a sentence with "linchpin", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.

When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.

Definitions

Noun
  1. 1
    A pin inserted through holes at the end of an axle or shaft, so as to secure a wheel or shaft-mounted device.

    "In ij camellis ferri vocatis lynspins emptis pro carectis iiijᵈ."

  2. 2
    pin inserted through an axletree to hold a wheel on wordnet
  3. 3
    A central cohesive source of stability and security; a person or thing that is critical to a system or organisation. figuratively

    "What is difficult to appreciate, however, is the discrepancy between his statement to the 'Manchester Guardian' correspondent and his known abhorance for party politics, which is the lynchpin of modern democracy."

  4. 4
    a central cohesive source of support and stability wordnet
Verb
  1. 1
    To adopt as, or serve as, a central cohesive source of stability and security. ambitransitive

    "The poems turn fear of individual death into an audit of the costs of an aristocratic status quo which is linchpinned by a monarchy indulging in paradigms of social redress that have become cosmetic, opportunities for self-display rather than genuine justice."

Example

"The army is the linchpin of North Korean dictatorship."

Common questions

What does "linchpin" mean?

A pin inserted through holes at the end of an axle or shaft, so as to secure a wheel or shaft-mounted device.

What is a synonym for "linchpin"?

Common synonyms include: anchor, backbone, keystone, anchorman, backbones, basis.

How do you use "linchpin" in a sentence?

The army is the linchpin of North Korean dictatorship.

How do you pronounce "linchpin"?

Pronounced /ˈlɪnt͡ʃˌpɪn/.

Etymology

From Middle English lynspin, compound of lins (“axletree”) and pin, from Old English lynis (“lynchpin”), from Proto-West Germanic *lunis, from Proto-Germanic *lunaz – compare German Lünse and Dutch luns – from Proto-Indo-European. Possible further cognates are Welsh olwyn (“wheel”), Old Armenian ողն (ołn, “back; spine, backbone”) and Sanskrit आणि (āṇí, “lynchpin”). Figurative use attested from the mid-20th century.

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