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

pin inserted through an axletree to hold a wheel on

Bronze dowels which attached the wheel to the axle of the chariot.

a central cohesive source of support and stability; "faith is his anchor"; "the keystone of campaign reform was the ban on soft money"; "he is the linchpin of this firm"

fastener that prevents slippage; linkage device.

The term used in the IPEDS Peer Analysis System to identify the postsecondary institution that is being compared to other institutions (peers) or that is the basis for any statistical reports generated within the system. Comparison group

Linchpin is an alternative/rock group that, unlike many bands of the genre, claims to be more in-touch with its audience, due the young ages of the band members.

a key part of a machine or structure that holds all of the other parts in place

a simple element that holds together the concept of a complex machine