THESAURUS
Portend
adumbrate, apprehend, augur, betoken, bode, call, croak, forebode, forecast, foreshadow, foreshow, foretoken, forewarn, give advance notice, have a premonition, have a presentiment, look black, lower, menace, omen, preapprehend, precaution, predict, premonish, prenotify, presage, prewarn, prognosticate, promise, prophesy, tell in advance, threaten, vaticinate, warn
ROGET THESAURUS
Portend
Prediction
VB
predict, prognosticate, prophesy, vaticinate, divine, foretell, soothsay, augurate, tell fortunes, cast a horoscope, cast a nativity, advise, forewarn, presage, augur, bode, abode, forebode, foretoken, betoken, prefigure, preshow, portend, foreshow, foreshadow, shadow forth, typify, pretypify, ominate, signify, point to, usher in, herald, premise, announce, lower, hold out expectation, raise expectation, excite expectation, excite hope, bid fair, promise, lead one to expect, be the precursor, extrapolate, project.