Anonymous ID: 4fc3f6 July 3, 2020, 5:51 p.m. No.9846135   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun

keystone noun [C] (IMPORTANT PART)

 

the most important part of a plan, idea, etc. on which everything else depends

 

keystone

noun [ C ]

UK /หˆkiหstษ™สŠn/ US

 

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 national prosperity.

A keystone of its corporate strategy is to invest in people, technology, and training to create a brand.

 

https://dictionary.cambridge.org/dictionary/english/keystone

Anonymous ID: 4fc3f6 July 3, 2020, 5:53 p.m. No.9846161   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun

>>9846144

 

The keystones are richly carved and the arch soffit is deeply coffered and enriched.

 

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