Last out is a phrase that means to endure or survive until the end of a situation or event. There are several synonyms for last out, depending on the context in which it is used. For example, persist, persevere, survive, endure, hold on, stick it out, and weather are all synonyms of last out. Each of these words refers to the idea of enduring through something difficult or unpleasant with the goal of reaching the end. The word choice between these synonyms may vary depending on the tone of the sentence and the nature of the situation. Nonetheless, they all convey the same essential meaning of making it through until the end.