The word "portal" in English means "门户" or "入口" in Chinese. It can refer to a grand or imposing entrance such as the main door of a building, or metaphorically to an entrance to something. In technology, especially on the internet, a portal is a website or web page that serves as an entry point to access a variety of information or other websites. For example, portals often provide a unified interface for users to log in and access different online services or resources. The word can also be used in medical terms like "门静脉" (portal vein). In summary, the term "portal" generally means a gate, entrance, or gateway, whether literal or figurative, physical or digital.

So, the Chinese question "portal 什么 意思" translates to "What does 'portal' mean?" and the answer is it means [门户, 入口, 通道](javascript:void(0)) in various contexts.