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key vs keystone

keystone vs key

key and keystone both are nouns.

key is an adjective but keystone is not an adjective.

key is a verb but keystone is not a verb.

Word NounAdjectiveVerbAdverb
key Yes Yes Yes No
keystone Yes No No No
As nouns, key and keystone are synonyms defined as:
  • key and keystone: the central building block at the top of an arch or vault
Other synonyms of key include headstone.
key (noun) keystone (noun)
metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated the central building block at the top of an arch or vault
a lever (as in a keyboard) that actuates a mechanism when depressed a central cohesive source of support and stability
mechanical device used to wind another device that is driven by a spring (as a clock)
the central building block at the top of an arch or vault
pitch of the voice
something crucial for explaining
any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music
a generic term for any device whose possession entitles the holder to a means of access
a list of words or phrases that explain symbols or abbreviations
a list of answers to a test
(basketball) a space (including the foul line) in front of the basket at each end of a basketball court; usually painted a different color from the rest of the court
a coral reef off the southern coast of Florida
a winged often one-seed indehiscent fruit as of the ash or elm or maple
a kilogram of a narcotic drug
key (adjective) keystone (adjective)
serving as an essential component
key (verb) keystone (verb)
harmonize with or adjust to
regulate the musical pitch of
identify as in botany or biology, for example
vandalize a car by scratching the sides with a key
provide with a key
Difference between key and keystone

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