1. Fear resulting from the awareness of danger (synset 107535012)
  2. A device that signals the occurrence of some undesirable event (synset 102697285)
  3. An automatic signal (usually a sound) warning of danger (synset 106816015)
  4. A clock that wakes a sleeper at some preset time (synset 102697521)
  1. Fill with apprehension or alarm;
    Cause to be unpleasantly surprised (synset 201786469)
    "I was horrified at the thought of being late for my interview"; "The news of the executions horrified us"
  2. Warn or arouse to a sense of danger or call to a state of preparedness (synset 200874096)
    "The empty house alarmed him"; "We alerted the new neighbors to the high rate of burglaries"

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