keystone Meaning in the Cambridge English Dictionary Cambridge dictionaries logo
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Meaning of “keystone” in the English Dictionary

"keystone" in British English

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keystonenoun [C]

uk   /ˈkiː.stəʊn/  us   /ˈkiː.stoʊn/
  • keystone noun [C] (STONE)

specialized architecture the ​middlestone in the ​top of an arch that has a ​specialshape and ​holds all the other ​stones in ​position
(Definition of keystone from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"keystone" in Business English

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keystonenoun [C]

uk   us   /ˈkiːstəʊn/
the most important ​part of a ​plan, ​idea, etc. on which everything else depends: Selling ​overseas has been, and always will remain, one of the keystones of our ​nationalprosperity. A keystone of its ​corporatestrategy is to ​invest in ​people, ​technology, and ​training to ​create a ​brand.
(Definition of keystone from the Cambridge Business English Dictionary © Cambridge University Press)
Translations of “keystone”
in Chinese (Simplified) 石, 拱顶石, 塞缝石…
in Chinese (Traditional) 石, 拱頂石, 塞縫石…
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“keystone” in British English

There, their and they’re – which one should you use?
There, their and they’re – which one should you use?
by ,
April 27, 2016
by Liz Walter If you are a learner of English and you are confused about the words there, their and they’re, let me reassure you: many, many people with English as their first language share your problem! You only have to take a look at the ‘comments’ sections on the website of, for example, a popular

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a small amount of something that shows you what the rest is or should be like

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