The phrase "beggar's request" refers to a humble plea or appeal made by someone who is in a position of need or desperation. There are several synonyms that can be used to describe this type of request, including plea, petition, entreaty, appeal, supplication, solicit, or implore. These words have similar meanings and can be used interchangeably depending on the context. They all describe a request made with sincerity and a sense of urgency, in the hopes of receiving aid or assistance from others. Whether it's a beggar on the street asking for spare change or someone asking for a favor, these synonyms all represent a need for help from others.