1 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" [syn: anchor, mainstay, keystone, backbone, lynchpin]
2 pin inserted through an axletree to hold a wheel on [syn: lynchpin]
EtymologyFrom lynspin < lynis (a pin securing a wheel to an axle). Figurative use attested from the mid 20th Century.
a securing pin
A linchpin or lynchpin is a metal part used in mechanical engineering to prevent a wheel or other rotating part from sliding off the axle it is riding on.
In colloquial speech, it is used to refer to the object at the center of a certain situation. An example of this is the main character in a sitcom, who acts as the glue that keeps all the other characters and situations together.
- Linchpin is a musical act from southeast London. The band consists of four members, Joey Cass: Vocals, Guitar. Paul Bugler: Guitar. Michael Cass: Bass. Olle Som: Drummer. They have toured a large number of small and large venues in the UK, and have played with the likes of well known American bands Good Charlotte and Sum41.