The phrase "hath alibi" means to have a credible excuse or explanation for one's actions or whereabouts during a particular time. Some common synonyms for this phrase include "have an alibi," "provide evidence of innocence," or "claim innocence." Other words that can be used to describe a credible excuse or explanation for one's actions include "justification," "explanation," "defense," or "reasoning." It is important to have a solid alibi in situations where one may be accused of wrongdoing or questionable behavior in order to avoid being wrongfully convicted or judged.