Definition of
keystone has definitions from the field of architecture
1
[ noun ] a central cohesive source of support and stability

Synonyms

anchor backbone linchpin lynchpin mainstay

Examples

"faith is his anchor" "the keystone of campaign reform was the ban on soft money" "he is the linchpin of this firm"

Related terms

support anchor

2
[ noun ] (architecture) the central building block at the top of an arch or vault

Synonyms

key headstone

Related terms

building_block quoin arch

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Rhymes with

ketone freestone cherrystone stone millstone curbstone capstone livingstone rhinestone firestone limestone milestone hailstone brimstone flintstone grindstone bluestone gravestone touchstone flagstone yellowstone lodestone sandstone tone moonstone whetstone tombstone gallstone gemstone headstone brownstone bloodstone sandstone goldstone gladstone whetstone cobblestone cornerstone acetone intone halftone overtone atone baritone monotone undertone

Phonetic and Homophones

K IY1 S T OW2 N

Similar Spelling

Kestner Kesten

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