Meaning of “approximate” - Learner’s Dictionary

approximate

verb [ T ] uk us /əˈprɒksɪmeɪt/ (also approximate to) formal

to be almost the same as something

approximation uk us /əˌprɒksɪˈmeɪʃən/ noun [ C, U ]

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