THE WORDCRAFT DEFINITION DICTIONARY
keystone
noun
The wedge at the top of an arch that holds its other pieces in position.
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Other meanings and uses
noun
The central element on which the success or stability of something depends.
Reliable translation was the keystone of their correspondence.
Local English device voice, when available. This is not a recorded dictionary pronunciation.
Read this word in Dave's Corner
The Bell That Rang at Low Tide · paragraph 5SEE IT IN USE
Examples in context
The mason trimmed the keystone until the two sides of the arch held firm.
The arch lacked its final keystone, so the builders kept the temporary supports in place.
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About this entry
This entry is part of the GlobalRPh vocabulary collection. Definitions are concise study meanings. Examples combine original teaching sentences with selected passages adapted from the supplied study notes; their source is labeled beside each example. A word may have additional specialized or historical senses.
Original WordCraft v3.0 study definition and example.
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