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Meaning of Rainbow Books | Babel Free

Noun CEFR B2

Definitions

The various standards for CD formats, each named after a particular color.

plural, plural-only

CEFR level

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

See also

rainbow box rainbow bridge rainbow cactus rainbow capitalism rainbow carrots rainbow ceiling

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