noun (n)

• the process of paying close and continuous attention

  proses membayar perhatian dekat dan berterusan

  Synonym:
  vigilance, wakefulness, watchfulness
  

  source: wordnet30
• a state of readiness to respond

  keadaan kesediaan merespon

  Synonym:
  alerting
  

  source: wordnet30
• lively attentiveness

  rancak attentiveness

  Synonym:
  on the qui vive, sharp-sightedness
  

  source: wordnet30
• The quality of being alert or on the alert; briskness; nimbleness; activity.

  kualiti menjadi peringatan atau di waspada; briskness; nimbleness; aktiviti.

  source: webster1913