Pre-indications are signals or hints that suggest something is likely to happen or exist. Synonyms for the word include premonition, forewarning, precursor, omen, harbinger, portent, sign, signal, indication, and clue. These terms all refer to something that comes before an event, situation, or condition and gives an indication of what is to come. For example, a premonition may be an intuitive feeling or a dream that warns of future trouble. A portent or omen may be a sign of impending danger or disaster. By using synonyms for pre-indications, writers can create a richer, more varied vocabulary and convey their intended meaning with greater precision and impact.