Portal/ˈpɔːrtl/ Definition 1 of 4Pro Tip 1/2Grand Entrance Often implies a majestic and impressive entryway, not just any regular door. The castle's portal loomed, adorned with intricate carvings. Pro Tip 2/2Physical Gateway Represents an actual, tangible entrance, not a metaphorical one. Upon their arrival, the delegation was led through the main portal.