A door or gate; hence, a way of entrance or exit, especially one that is grand and imposing.
- A doorway, entrance, or gate, especially one that is large and imposing.
- An entrance or a means of entrance: the local library, a portal of knowledge.
- The portal vein.
- A website considered as an entry point to other websites, often by being or providing access to a search engine.
- Of or relating to the portal vein or the portal system.
- Of or relating to a point of entrance to an organ, especially the transverse fissure of the liver, through which the blood vessels enter.