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Noun: hub  húb
  1. The central part of a car wheel (or fan or propeller etc) through which the shaft or axle passes
     
  2. A centre of activity, interest, 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"

Derived forms: hubs

Type of: center [US], centre [Brit, Cdn], eye, heart, middle, part, portion

Part of: blower, car wheel, electric fan, propeller, propellor

Encyclopedia: Hub, California