This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. The center part of a wheel, fan, or propeller.

n. A center of activity or interest; a focal point. See Synonyms at center.

n. The central part, usually cylindrical, of a wheel; the nave

n. A point where many routes meet and traffic is distributed, dispensed or diverted

n. a computer networking device connecting several ethernet ports. See switch.

n. A stake with a nail in it, used to mark a temporary point.

n. The central part, usually cylindrical, of a wheel; the nave. See Illust. of axle box.

n. The hilt of a weapon.

n. A rough protuberance or projecting obstruction. [U.S.] See Hubby.

n. A goal or mark at which quoits, etc., are cast.

n. A hardened, engraved steel punch for impressing a device upon a die, used in coining, etc.

n. A screw hob. See Hob, 3.

n. A block for scotching a wheel.

n. The central location within which activities tend to concentrate, or from which activities radiate outward; a focus of activity.

n. A large airport used as a central transfer station for an airline, permitting economic air transportation between remote locations by directing travellers through the hub, often changing planes at the hub, and thus keeping the seat occupancy rate on the airplanes high. The hub together with the feeder lines from remote locations constitute the so-called hub and spoke system of commercial air passenger transportation. A commercial airline may have more than one such hub.

n. The city of Boston, Massachusetts referred to locally by the nickname The Hub.

n. A lump; a ridge; a small mass; any rough protuberance or projection. as, a hub in the road.

n. A small stack of hay.

n. A thick square sod pared off the surface of a peat-bog when digging for peat.

n. A block of wood for stopping a carriage-wheel.

n. In die-sinking, a cylindrical piece of steel on which the design for a coin is engraved in relief.

n. A fluted screw of hardened steel, adapted to be placed on a mandrel between the centers of a lathe, notched to present cutting edges, and used in cutting screw-tools, chasing-tools, etc.

n. In plumbing, a short piece of pipe with a bell at each end, used for joining pipes in line or at an angle. When one end is smaller than the other, to form a reducing-joint, it is a reduced hub.

n. The wooden or metal center of a carriage-or wagon-wheel, into which the spokes are inserted; the nave.

n. Something resembling the hub of a wheel in central position or importance.

n. A mark at which quoits, etc., are cast.

n. The hilt of a weapon.

n. Also hob in some uses.

n. the central part of a car wheel (or fan or propeller etc) through which the shaft or axle passes

n. a center of activity or interest or commerce or transportation; a focal point around which events revolve

"LearnVest. com, a website which she describes as a hub of personal financial information for women, including daily bite-sized newsletters, online calculators and financial checklists."

part    portion   

center    the hub of the universe    the hub    hub-boring machine    suspension hub   

axle box    hubby    hob    the hub   

hubbed    hubbing   

nave    block   

Cub    bub    chubb    club    cub    drub    dub    grub    nub    pub   

axle    bearing    infrastructure    centers    adapter    terminal    disk    spoke    controller    sector