keystone vs backbone

backbone vs keystone

keystone and backbone both are nouns.

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

As nouns, keystone and backbone are synonyms defined as:

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

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

keystone (noun)	backbone (noun)
the central building block at the top of an arch or vault	the part of a network that connects other networks together
a central cohesive source of support and stability	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
	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 keystone and backbone

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