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Meaning of cuckoo's egg | Babel Free

Noun CEFR B2

Definitions

Anything harmful that is infiltrated into a place in order to develop and emerge there.

CEFR level

B2

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

See also

cuckoo's meat cuckoo's nest cuckoobud cuckooflower cuckooing cuckooness