portals

'portals'

[portal.n.01] as in: a grand and imposing entrance (often extended metaphorically)

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Examples:
the portals of the cathedral
the portals of heaven
the portals of success

'portals'

[portal_site.n.01] as in: a site that the owner positions as an entrance to other sites on the internet

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Examples:
a portal typically has search engines and free email and chat rooms etc.

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'portals'

[portal_vein.n.01] as in: a short vein that carries blood into the liver