overwordExplorer
ENGLISH · A WORD WITH POSSIBILITIES

linchpin.

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

8 characters2 syllables approx.English language

Meaning & usage

noun/ˈlɪnt͡ʃˌpɪn/

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

  2. A central cohesive source of stability and security; a person or thing that is critical to a system or organisation.

    figuratively
Where this word comes from

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.

verb/ˈlɪnt͡ʃˌpɪn/

  1. To adopt as, or serve as, a central cohesive source of stability and security.

    ambitransitive
Where this word comes from

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.

FROM WORD TO NAME

Try it on your idea.

linchpin has 8 characters. Say it out loud, try it alongside a description of your project, and see whether its meaning fits what you want to create.

linchpin studiolinchpin workshello, linchpin

These are naming prompts. Meanings and pronunciation can vary; existing brand and domain uses have not been checked.

Explore the name generator

A word with a source.

Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.