Inform (someone) of a possible future danger or problem; forewarn.
people living within areas that have been prone to flooding would be prewarned
Example sentencesExamples
Easter is only just around the corner and everyone has been prewarned not to buy me any easter eggs.
These bars and clubs pre-warn their customers that this is their policy and some are now allowing bottles and glasses onto the dance floor.
It is better to be pre-warned than to be taken by surprise and found unprepared.
It drained a section of the canal for maintenance, didn't pre-warn the moored boaters, but just untied and pushed the boats away from the bank.
Pre-warn your neighbours and let them know what time the party will end.
More effort needs to be made to increase the visibility of signage and safety flaggers in order to pre-warn and protect all users.
After thinking about it and pre-warning them of my views I said "yes".
Last week, as fire warden Evacuation Team Leader, I received a phone call pre-warning me of an exercise. I mentioned that I would be absent on Wednesday and my team member is now based in Exeter.
I do not want to pre-warn him of our intentions but do not think it is correct that he digs an even bigger hole for himself over the next two weeks.
Tornadoes just happen — there's nothing that pre-warns you about it, they can happen anywhere.
Synonyms
warn, warn in advance, give advance warning, give fair warning, give notice, advise, apprise, inform