Synonyms and related words :
acquaint, admonish, advertise, advertise of, advise, affirm, alert, announce, annunciate, apprise, brief, bring word, caution, communicate, cry havoc, declare, declare roundly, disclose, enlighten, enunciate, familiarize, forerun, give fair warning, give the facts, give warning, give word, harbinger, herald, inform, instruct, issue a manifesto, issue a statement, issue an ultimatum, leave word, let know, make a statement, make an announcement, mention to, notify, preannounce, proclaim, pronounce, publish a manifesto, report, run before, send word, serve notice, sound the alarm, speak, state, tell, threaten, tip, tip off, utter a caveat, verse, warn, warn against