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Meaning of copperbottomed | Babel Free

Adjective CEFR C2

Examples

“Why should 100 per cent, cast-iron, copperbottomed, utterly water-tight proof be demanded before we can get rid of an unnecessary toxic hazard introduced in a cavalier and irresponsible manner[…]”
“Unfortunately, there are as yet no copperbottomed etymologies[…]”

CEFR level

C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.

See also

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