Definition of "warn" in Englisch

verb

1. (transitive) To make (someone) aware of (something impending); especially:

2. (transitive) To caution or admonish (someone) against unwise or unacceptable behaviour.

   • He was warned against crossing the railway tracks at night.
   • Don't let me catch you running in the corridor again, I warn you.

3. (chiefly with "off", "away", and similar words) To advise or order to go or stay away.

   • A sign warns trespassers off/away from the site.

4. (intransitive) To give warning.