Convince/kənˈvɪns/ Definition 1 of 3Pro Tip 1/3Emotional Appeal Use 'convince' when appealing to someone's feelings to believe something. The documentary convinced me that sea turtles need our help. Pro Tip 2/3Not Always True Convincing doesn't mean the thing is true, just that someone believes it is. He convinced the jury of his innocence, even though evidence was missing. Pro Tip 3/3Strong Arguments When trying to convince, it implies using strong reasons or arguments. Her speech convinced the council to adopt the policy.