This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A locking pin inserted in the end of a shaft, as in an axle, to prevent a wheel from slipping off.

n. A central cohesive element: Reduced spending is the linchpin of their economic program.

n. a pin inserted through holes at the end of an axle, so as to secure a wheel

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

n. A pin used to prevent the wheel of a vehicle from sliding off the axletree.

n. A pin inserted in the spindle of the axle of a vehicle to prevent the wheel from slipping off. Also axle-pin.

n. pin inserted through an axletree to hold a wheel on

n. a central cohesive source of support and stability

"More to the point, it would have to survive without McShane as Silas, continue to function dramatically even after the Saul counterpart dies and its linchpin is gone — which seems, at the moment, inconceivable."

pin    support   

jewlery    axletree    grapery    sub-type    sealift    deployability    disposability    victim    algolagnia    virtsec