Also found in: Dictionary, Thesaurus.
warn (one) off (from someone or something)
To caution someone to leave or not to come near something. The first noun or pronoun can also come after "off." The government put up signs warning off any potential hikers from the area. I held my shotgun across my chest as I warned the ruffians off from my land.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
warn someone off
to advise a person to stay away. We placed a guard outside the door to warn people off until the gas leak could be fixed. The guards warned off everyone in the vicinity.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
To notify someone to go or stay away: The sheriff warned them off the private property.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.