portal

An entrance, entry point, or means of entry.

“The local library, a portal of knowledge.”

A website or page that acts as an entrance to other websites or pages on the Internet.

“The new medical portal has dozens of topical categories containing links to hundreds of sites.”

A short vein that carries blood into the liver.

A magical or technological doorway leading to another location, period in time or dimension.

A lesser gate, where there are two of different dimensions.

Formerly, a small square corner in a room separated from the rest of an apartment by wainscoting, forming a short passage to another apartment.

A grandiose and often lavish entrance.

(bridge-building) The space, at one end, between opposite trusses when these are terminated by inclined braces.

A prayer book or breviary; a portass.

Of or relating to a porta, especially the porta of the liver.

“the portal vein”