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Figurative - A foundation, basis or support.

Stone which lies at the corner of two walls and unites them; implies a sense of foundation in that the building would fall to ground without the cornerstone.
"This law is implicit in earlier work, but Lavoisier stated it explicitly and used it as the cornerstone of his science."

"Yoga and meditation were the cornerstone to the success of the state ranker."
by K****h4u February 18, 2019
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Jun 20 Word of the Day
Marginalized Orientations, Gender identities, And Intersex. it’s meant to be an all inclusive umbrella term for asexuals, homosexuals, multisexuals, trans people, and intersex people. Alternative to LGBTQIAP+
Alternative to MOGII, easier to pronounce.
The MOGAI community in my city is very friendly.
by sebasty September 04, 2014
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2
When you get intoxicated to break through a sexual inhibitionlike when pot helps you “turn a corner” sexually.
Carly wanted to do her new boyfriend Mike, but she just couldn’t do it until she got cornerstoned.”
by Ren, the Ambivalent One February 23, 2009
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3
On Route 1 in College Park, MD, the Cornerstone Bar is the most popular hang out for the college kids who attend the University of Maryland, College Park. Located at the corner of Route 1 and Knox Road, Cornerstone is a mecca of drunk college kids on the weekends.
let's go to Cornerstone tonight, I'm tired of these frat parties.
by JohnDoe12345 September 15, 2005
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4
The upper section of the abs usually shown when a guy pulls his shirt up to entice females to increase chances of a sexual encounter.
When i show these bitches my cornerstone it's going to be on like donkey kong!!
by V.T. Lucero July 27, 2011
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5
Someone you’re attracted to due to them looking like a previous partner.
she looks exactly like Katie. What a cornerstone.
by peder grivin May 05, 2021
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6
a christian music festival where you go to meet up and have sex with people you have met on the internet
"Jesus4life2512-i can't wait to met you at cornerstone and watch Emery with you"
"xXxTinityRawksxXx-i know, i feel like i've known you forever..."
by pinkeye January 27, 2005
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