Answer :

The word "persist" means to continue firmly or obstinately in a course of action despite difficulty or opposition. A synonym of "persist" is "remain." This is because both words imply staying or continuing in a particular state or condition. For example: - If you persist in your efforts, you will eventually succeed. (Here, "persist" means to continue with determination.) - If you remain calm during the storm, you can think clearly and make better decisions. (In this case, "remain" implies staying in a specific state or condition.) On the other hand, "vanish" is an antonym of "persist." It means to disappear suddenly or entirely. Here's an example to illustrate the difference: - The hope for a peaceful resolution to the conflict did not vanish completely; it persisted in the hearts of the negotiators. (In this sentence, "vanish" is used to show disappearing completely, whereas "persisted" shows continuous existence despite difficulties.) Therefore, in the context of the question, "remain" is the synonym of "persist," while "vanish" is the antonym.