Meaning of “collaboration” - Learner’s Dictionary

collaboration

noun uk us /kəˌlæbəˈreɪʃən/
WORK [ C, U ]

the activity of working together to create or achieve the same thing, or a product of this:

The show was a result of collaboration between several museums.
ENEMY [ U ]

help that someone gives to an enemy country or government

(Definition of “collaboration” from the Cambridge Learner’s Dictionary © Cambridge University Press)