nexus
n. countablen. a central point where several different things or ideas connect. It is the middle of a network where everything comes together.
n. a connection or series of connections linking two or more things; the central and most important point of a network or system.
The city is a nexus for trade and culture.
The new transport hub serves as a nexus for trains, buses, and international flights.
The university campus became a nexus of political activism and intellectual debate during the late twentieth century, influencing policy decisions at the highest levels of government.
From Latin nexus (“connection, nexus; act of binding, tying or fastening together; something which binds, binding, bond, fastening, joint; legal obligation”), from nectō (“to attach, bind, connect, fasten, tie; to interweave; to relate; to unite; to bind by obligation, make liable, oblige; to compose, contrive, devise, produce”) + -tus (suffix forming verbal nouns).
Often used with 'of' to describe the specific things being connected.