1.Definition: 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"

Related Noun(s):anchor, backbone, keystone, lynchpin, mainstay

Category: General

2.Definition: pin inserted through an axletree to hold a wheel on

Related Noun(s):lynchpin

Category: Objects