[warn.ing] n (bef. 12c) 1: the act of warning: the state of being warned "he had ~ of his illness"
2: something that warns or serves to warn; esp: a notice or bulletin that alerts the public that a tornado has been reported in the immediate vicinity or that the approach of a severe storm is imminent
[2]warning adj (ca. 1552): serving as an alarm, signal, summons, or admonition "~ bell" "~ shot" -- warn.ing.ly adv