hub
noun
[ hʌb ]
• the central part of a wheel, rotating on or with the axle, and from which the spokes radiate.
• the effective centre of an activity, region, or network.
• "the city has always been the financial hub of the country"
Similar:
centre,
centre of activity,
core,
heart,
focus,
focal point,
middle,
nucleus,
kernel,
nerve centre,
Origin:
early 16th century (denoting a shelf at the side of a fireplace used for heating pans): of unknown origin (compare with hob1).
