Forewarning in spanish
Preaviso
pronunciation: pɹ̩eɑbisoʊ part of speech: noun
pronunciation: pɹ̩eɑbisoʊ part of speech: noun
In gestures
forewarn = avisar, prevenir, advertir.
Example: I think a person would be derelict in his or her duty not to forewarn someone about a problem.