keystone Meaning, definition in Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of "keystone" - English Dictionary

See all translations

keystonenoun [C]

uk   /ˈkiː.stəʊn/  us   /-stoʊn/

keystone noun [C] (STONE)

specialized architecture the middle stone in the top of an arch that has a special shape and holds all the other stones in position

keystone noun [C] (IMPORTANT PART)

the most important part of a plan, idea, etc. on which everything else depends
Translations of “keystone”
in Chinese (Traditional) 石, 拱頂石, 塞縫石…
in Chinese (Simplified) 石, 拱顶石, 塞缝石…
(Definition of keystone from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of keystone?
Add Cambridge dictionaries to your browser to your website

Definitions of “keystone” in other dictionaries

Word of the Day
truth

the quality of being true

Word of the Day

July 4th, Bastille Day, and the language of revolution.
July 4th, Bastille Day, and the language of revolution.
by Liz Walter,
July 01, 2015
With America’s Independence Day on the 4th and France’s Bastille Day on the 14th, July certainly has a revolutionary theme, so this blog looks at words and phrases we use to talk about the dramatic and nation-changing events that these days celebrate. In particular, it focuses on one of the most important

Read More 

generation pause noun
generation pause noun
July 06, 2015
informal young adults who are not able to do things previously typical for their age group such as buy a home or start a family because of lack of money Meanwhile, a new study released last week revealed a quarter of Brits believe they’ll never own a property, leading them to be

Read More