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Meaning of proof spirit | Babel Free

Noun CEFR B2

Definitions

A mixture of alcohol and water used as a standard for distilled drinks.

countable, uncountable

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

proof system proof-listener proof-of-concept proof-of-work proof-reader proof; evidence

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