Synonyms and related words :
admonishment, admonition, advice, alarm, alerting, caution, caveat, clue, cue, deterrent example, example, final notice, final warning, hint, lesson, monition, moral, notice, notification, object lesson, office, passing word, piece of advice, pointer, sap, steer, threat, tip, tip-off, ultimatum, verb, verbum sap, verbum sapienti, warning, warning piece, whisper, word of advice