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English definition of “cocoon”

cocoon

noun [C]    /kəˈkun/
the silky covering that encloses and protects caterpillars (= a type of insect ) during a stage in their lives before they develop into adults fig. A cocoon is also a safe , quiet place : the warm , safe cocoon of childhood
(Definition of cocoon noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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