proclaim

/prō-ˈklām/

Middle English proclamen, from Anglo-French or Latin; Anglo-French proclamer, from Latin proclamare, from pro- before + clamare to cry out

verb

to declare publicly, typically insistently, proudly, or defiantly and in either speech or writing : announce
to give outward indication of : show
to declare or declare to be solemnly, officially, or formally

his manner proclaimed his genteel upbringing

declare announce proclaim promulgate mean to make known publicly. declare implies explicitness and usually formality in making known. announce implies the declaration of something for the first time.