Meaning of invisible ink | Babel Free
Definitions
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An ink, invisible on application or soon thereafter, that can later be rendered visible by some process, such as exposing it to heat. countable, uncountable
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An ink used in pranks that is visible at first but soon disappears. countable, uncountable
Equivalents
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.