Sinonim keystone

English Thesaurus

1. the central building block at the top of an arch or vault (noun.artifact)

hypernym	:	building block,
definition	:	a block of material used in construction work (noun.artifact)

hyponym	:	coign, coigne, quoin,
definition	:	the keystone of an arch (noun.artifact)

part meronym	:	arch,
definition	:	(architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it (noun.artifact)

2. a central cohesive source of support and stability (noun.cognition)

hypernym	:	support,
definition	:	something providing immaterial assistance to a person or cause or interest (noun.cognition)

derivation	:	anchor, ground,
definition	:	fix firmly and stably (verb.contact)

derivation	:	anchor, ground,
definition	:	fix firmly and stably (verb.contact)