Meaning of “proclaim” - Learner’s Dictionary

proclaim

verb [ T ] uk us /prəʊˈkleɪm/ formal

to announce something officially or in public

proclamation uk us /ˌprɒkləˈmeɪʃən/ noun [ C ]

an official announcement about something important

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