This tool relates English terms to concepts from the
SUMO
ontology by means of mappings to
WordNet synsets.
According to WordNet, the noun "portal" has 3 sense(s).
106359657 a site that the owner positions as an entrance to other sites on the internet; "a portal typically has search engines and free email and chat rooms etc.".
103985684 a grand and imposing entrance (often extended metaphorically); "the portals of the cathedral"; "the portals of heaven"; "the portals of success".