| Library / English Dictionary |
KEYSTONE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The central building block at the top of an arch or vault
Synonyms:
Classified under:
Nouns denoting man-made objects
Hypernyms ("keystone" is a kind of...):
building block (a block of material used in construction work)
Hyponyms (each of the following is a kind of "keystone"):
coign; coigne; quoin (the keystone of an arch)
Holonyms ("keystone" is a part of...):
arch ((architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it)
Sense 2
Meaning:
A central cohesive source of support and stability
Example:
he is the linchpin of this firm
Synonyms:
anchor; backbone; keystone; linchpin; lynchpin; mainstay
Classified under:
Nouns denoting cognitive processes and contents
Hypernyms ("keystone" is a kind of...):
support (something providing immaterial assistance to a person or cause or interest)
