herald
her-ald
verb
To announce or signal the approach of something important, often with great fanfare.
"Trumpets heralded the king's arrival."
noun
An official messenger making public announcements, or a sign of future events.
"The swallows are a herald of spring."
Thesaurus
Synonyms: hail, harbinger, forerunner, predecessor, precursor, trumpeter, acclaim, annunciate, foretell, announce