por təl
1. a doorway or entrance, esp. a large and imposing one.
The prince and his retinue came on horseback through the castle’s portal.
2. an entrance or means of entry to a place.
The hero discovers a portal to an enchanted world.
3. a website that serves as an entry point to the Web or a segment of the Web by offering a range of resources which may include a search engine, topic directories, discussion forums, email, and other services.