Third-person singular simple present indicative form of forewarn.(verb)
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Use "forewarns" in a sentence
""By picking a fight with the press, it kind of forewarns the public to view some of the media coverage skeptically.""
"There, although the halls are brightly lit and the old servants delighted to see her, a sense of disaster hangs over the festivities and Sarah's glimpse of a ghostly hunt forewarns of tragedy to come."
"I can look at you as the season that forewarns death, where trees die and bodies shiver, prepared and not prepared for change."