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Linchpin
/ˈlɪnt͡ʃˌpɪn/
A pin inserted through holes at the end of an axle or shaft, so as to secure a wheel or shaft-mounted device.
📖 Definitions of "Linchpin"
noun
- 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.
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