different between bedrock vs keystone

English

Etymology

bed +? rock

Noun

bedrock (countable and uncountable, plural bedrocks)

1. (uncountable, geology, mining, engineering, construction) The solid rock that exists at some depth below the ground surface. Bedrock is rock "in place", as opposed to material that has been transported from another location by weathering and erosion.
2. A basis or foundation.
   • 2012 October 23, David Leonhardt, "[1]," New York Times (retrieved 24 October 2012):

     Many of the bedrock assumptions of American culture — about work, progress, fairness and optimism — are being shaken as successive generations worry about the prospect of declining living standards.

   • Privacy is the bedrock of individual freedom.

Usage notes

In mountainous regions, bedrock can be seen at the surface. However, these occurrences are more properly called outcrops. In construction and engineering, it is often desired to place foundations on bedrock in order to improve the stability of a structure.

Hypernyms

• rock

Translations

Anagrams

• brocked

English

Etymology

key +? stone

Definition 4 (retail) perhaps originated in the jewelry industry in the magazine called "Jewelers' Circular-Keystone"Source: https://english.stackexchange.com/questions/341864/what-is-the-source-of-the-word-keystone-in-reference-to-pricing-a-product

Pronunciation

• IPA^(key): /?ki?.st??n/

Noun

keystone (plural keystones)

1. (architecture) The top stone of an arch.
2. Something on which other things depend for support.
3. A native or resident of the American state of Pennsylvania.
4. (retail) A retail price that is double the cost price; a markup of 100%.
5. (baseball) The combination of the shortstop and second baseman.

Derived terms

Translations

Verb

keystone (third-person singular simple present keystones, present participle keystoning, simple past and past participle keystoned)

1. (transitive) To distort (an image) by projecting it onto a surface at an angle, which for example causes a square to look like a trapezoid.
2. (transitive, retail) To double the cost price in order to determine the retail price; to apply a markup of 100%.

Anagrams

• keynotes, keytones