warning

Definitions

Aviation

Electronics

  • An indication, such as a light or a sound, which signals an impending danger or other undesirable condition or state. Unless certain precautions are taken, there may be damage to a component, device, piece of equipment, or system, personnel may be harmed, and/or the surrounding environment may be endangered.

Information & Library Science

  • noun spoken or written advice about something bad that may happen

Medical

  • noun written or spoken information about a danger

Military

  • noun an act of warning someone
  • noun an official record that a person has been warned about their actions or conduct
http://www.dictionarycentral.com/definition/warning.html