Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun hub

2 senses of hub

Sense 1
hub -- (the central part of a car wheel (or fan or propeller etc) through which the shaft or axle passes)
       => part, portion -- (something less than the whole of a human artifact; "the rear part of the house"; "glue the two parts together")

Sense 2
hub -- (a center of activity or interest or commerce or transportation; a focal point around which events revolve; "the playground is the hub of parental supervision"; "the airport is the economic hub of the area")
       => center, centre, middle, heart, eye -- (an area that is approximately central within some larger region; "it is in the center of town"; "they ran forward into the heart of the struggle"; "they were in the eye of the storm")