Definition of prewarn in English:
Inform (someone) of a possible future danger or problem; forewarn: people living within areas that have been prone to flooding would be prewarned
More example sentences
- It is better to be pre-warned than to be taken by surprise and found unprepared.
- Tornadoes just happen — there's nothing that pre-warns you about it, they can happen anywhere.
- After thinking about it and pre-warning them of my views I said "yes".