What about thinking of some acronyms for G.R.I.N?
For example:
(Chatgpt)
Global Resilient Independent Network
Grin Really is Nimble
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I think it a good idea too, it could amplify the marketing like a slogan.
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Great Reason to Invest Now
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Some keywords in my mind:
G: Great, grand, grow, gain, guard, genuine
R: reserve, rapid, revolution,
I: Intelligent, internet, inter(something), invisible, Incognito
N: network,ā¦
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Gives Reward In Nanoseconds
Grab Reward In Nanoseconds
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Get Rich In Neverland
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GReatest INvention 
Although, according to https://grin-compiler.github.io/ it means
Graph Reduction Intermediate Notation
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could be Garbage Reduction INvention 
God Run Ignotus Nodes
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Great Reset Is Nigh =)
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Global Revolution of Interactive Notes
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Gold Really Invented Now
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Gā¦ ReINvented bla bla 20 chars
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Goobers Running Individual Nodes
Gaining Rare Intelligent Nimbleness
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