Meaning of “remain” - Learner’s Dictionary

remain

verb us uk /rɪˈmeɪn/
Extra Examples
Traces of the ancient city remain.Only a few hundred square miles of the forest remain.Only a few of the cakes remained after the party.Not many of the original features of the house remain.Only a few fragments of the original manuscript remain.

B2 [ I ] to continue to exist when everything or everyone else has gone:

Only a few hundred of these animals remain today.
remain calm/open, etc; remain a secret/mystery/prisoner, etc

B1 to continue to be in the same state:

Despite the chaos around him, he remained calm.
The exact date of the wedding remains a secret.
remain at/in/with, etc formal

B2 to stay in the same place:

She will remain at her mother's until I return.

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