alert

Adjective
  • Engaged in or accustomed to close observation (synset 300092165)
Noun
  • Condition of heightened watchfulness or preparation for action (synset 114055142)
  • A warning serves to make you more alert to danger (synset 107239434)
  • An automatic signal (usually a sound) warning of danger (synset 106816015)
Adjective
Verb
  • Warn or arouse to a sense of danger or call to a state of preparedness (synset 200874096)

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