bode, portend, auspicate, prognosticate, omen, presage, betoken, foreshadow, augur, foretell, prefigure, forecast, predict

indicate by signs; "These signs bode bad news"

• threaten — to be a menacing indication of something:"The clouds threaten rain"
• foreshow — foretell by divine inspiration

• bespeak, betoken, indicate, point, signal — be a signal for or a symptom of