mainstay
main-stay
noun
A person or thing providing the chief support for an organisation or group.
"The local pub is a mainstay of the community."
Thesaurus
Synonyms: anchor, keystone, linchpin, lynchpin, backbone, pillar
main-stay
A person or thing providing the chief support for an organisation or group.
"The local pub is a mainstay of the community."
Synonyms: anchor, keystone, linchpin, lynchpin, backbone, pillar