🇬🇧 en fr 🇫🇷

linchpin noun

  /ˈlɪnt͡ʃˌpɪn/
  • (figuratively) A central cohesive source of stability and security; a person or thing that is critical to a system or organisation.
 cheville ouvrière, pivot
  • A pin inserted through holes at the end of an axle or shaft, so as to secure a wheel or shaft-mounted device.
 cheville, cheville ouvrière
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