Word.ws English Dictionary

on alert

on alert prepositional phrase: on guard.

Prepositional phrase

  1. on guard

Questions about on alert

What does on alert mean?
On alert means on guard.
What part of speech is on alert?
On alert is a prepositional phrase.

Words near on alert in the dictionary

  1. on account of
  2. on acid
  3. on again off again
  4. on again, off again
  5. on air
  6. on alert
  7. on all counts
  8. on all fours
  9. on all hands
  10. on all-fours
  11. on an empty stomach

Source and license

Adapted from Wiktionary: on alert (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “on alert.” Word.ws, https://word.ws/on_alert. Based on Wiktionary, CC BY-SA 4.0.