building block vs keystone

building block and keystone both are nouns.

Word	Noun	Adjective	Verb	Adverb
building block	Yes	No	No	No
keystone	Yes	No	No	No

As nouns, keystone is a hyponym of building block; that is, keystone is a word with a more specific, narrower meaning than building block:

building block: a block of material used in construction work
keystone: the central building block at the top of an arch or vault

Other hyponyms of building block include ashlar, breeze block, cinder block, clinker block, headstone, key, voussoir.

building block (noun)	keystone (noun)
a block of material used in construction work	the central building block at the top of an arch or vault
a single undivided natural thing occurring in the composition of something else	a central cohesive source of support and stability

building block vs keystone

building block and keystone both are nouns.

Words related to "building block"

Words related to "keystone"