Meaning of “separation” - Learner’s Dictionary

separation

noun uk us /ˌsepərˈeɪʃən/
WHEN SEPARATE [ C, U ]

B2 the act of separating or being separated:

the separation of church and state
Their working in different countries meant long periods of separation.
AGREEMENT [ C ]

a legal agreement when two people stay married but stop living together

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