Meaning of “retire” - Learner’s Dictionary

retire

verb [ I ] us uk /rɪˈtaɪər/
My ambition is to retire at forty.She's planning to retire from politics next year.He can afford to retire and live in comfort for the rest of his life.He hinted that he wants to retire next year.He retired last week after 25 years' service.
STOP WORK

B1 to leave your job and stop working, usually because you are old:

She retired from the company in 2010.
GO formal

to go to another place where you can be alone or more private:

After dinner, he retired to his bedroom.

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