portal

UK: /ˈpɔː^rt^əl/ US: /ˈpɔrtəl/ ,(pôr′tl, pōr′-)

WordReference Random House Learner's Dictionary of American English © 2025

por•tal¹ /ˈpɔrtəl/   n. [countable]

1. a door, gate, or entrance, esp. one of great size and appearance.

WordReference Random House Unabridged Dictionary of American English © 2025

por•tal¹  (pôr′tl, pōr′-), n. 

1. a door, gate, or entrance, esp. one of imposing appearance, as to a palace.
2. Building, Civil Engineering an iron or steel bent for bracing a framed structure, having curved braces between the vertical members and a horizontal member at the top.
3. Civil Engineering, Mining an entrance to a tunnel or mine.

• Medieval Latin, noun, nominal use of neuter of portālis of a gate. See portal²
• Middle English portale 1300–50

por′taled, por′talled, adj. 
Synonyms

• 1. entranceway, doorway, entry, threshold.

por•tal²  (pôr′tl, pōr′-), [Anat.]
adj. 

1. noting or pertaining to the transverse fissure of the liver.

n. 

2. See portal vein. 

• Medieval Latin portālis of a gate. See port⁴, -al¹
• 1605–15

portal,¹ +n. 

1. Computing a Web site that functions as an entrance to the Internet, as by providing useful content and organizing various sites and features on the World Wide Web or other parts of the Internet.

Collins Concise English Dictionary © HarperCollins Publishers::

portal / ˈpɔːt^əl/ noun

1. an entrance, gateway, or doorway, esp one that is large and impressive
2. an internet site providing links to other sites

adjective

1. of or relating to a portal vein: hepatic portal system
2. of or relating to a porta

Etymology: 14th Century: via Old French from Medieval Latin portāle, from Latin porta gate, entrance