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3. be carved in stone

be carved in stone

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be carved in stone

To be made permanent, typically of a plan or idea. We might get brunch next weekend, but nothing is carved in stone yet.

See also: carve, stone

be carved/set in stone

if an arrangement, a plan, or a rule is set in stone, it is completely fixed so that it cannot be changed (usually negative) The rules aren't set in stone; they can be altered to suit changing circumstances. These are just a few ideas to be discussed - nothing is carved in stone.

See also: carve, stone