backbone vs linchpin

linchpin vs backbone

backbone and linchpin both are nouns.

Word	Noun	Adjective	Verb	Adverb
backbone	Yes	No	No	No
linchpin	Yes	No	No	No

As nouns, backbone and linchpin are synonyms defined as:

backbone and linchpin: a central cohesive source of support and stability

Other synonyms of backbone include anchor, keystone, lynchpin, mainstay.

backbone (noun)	linchpin (noun)
the part of a network that connects other networks together	pin inserted through an axletree to hold a wheel on
the part of a book's cover that encloses the inner side of the book's pages and that faces outward when the book is shelved	a central cohesive source of support and stability
fortitude and determination
the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
a central cohesive source of support and stability

Difference between backbone and linchpin

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