to warnverbformal/ɐdvɨɾˈtiɾ/mediumad·ver·tirPortuguesEnglishEspanolFrancaisDefinitionTo inform someone in advance of a possible danger, problem, or unpleasant event.I must warn you that the road is icy.The signs warn against swimming here.syncautionalertnotifyantencouragereassureCommon collocationswarn someonewarn aboutwarn againstEtymologyDo latim 'advertere' ('voltar-se para, prestar atenção').Related wordsadvertênciaadvertidoadvertivel