danger sign

from Moby Thesaurus II by Grady Ward, 1.0
24 Moby Thesaurus words for "danger sign":
      early symptom, falling barometer, gathering clouds, high sign,
      omen, precursor, preliminary sign, premonitory sign,
      premonitory symptom, prodroma, prodrome, quarantine flag, red flag,
      red light, skull and crossbones, storm petrel, stormy petrel,
      symptom, thundercloud, thunderhead, warning sign, warning signal,
      yellow flag, yellow jack

    

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