Meaning of “isolation” - Learner’s Dictionary

isolation

noun uk us /ˌaɪsəlˈeɪʃən/
SEPARATE [ U ]

the state of being separate from other people, places, or things:

the country's economic isolation from the rest of the world
in isolation

alone, or separately from other people, places, or things:

These poems cannot be considered in isolation.
LONELY [ U ]

a feeling of being lonely:

I had this awful sense of isolation.

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