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Meaning of secret ink | Babel Free

Noun CEFR B2

Definitions

Synonym of invisible ink (“ink that can be made visible by some process”).

countable, uncountable

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

Secret Intelligence Service secret key secret menu secret of Polichinelle secret police secret recipe