As far as possible in embarrassment or difficulty, or in business; deeply involved.

plural of hub plank

A horizontal guard plank along the truss of a highway bridge, at the height of a wagon-wheel hub.

plural of e-hub

A specialized e-marketplace tailored to a particular vertical or horizontal market.

plural of hub-bub

plural of hub cap

(transport, networking) Being or relating to a topology, whether for the physical distribution of goods or for telecommunications, that has a central "hub" connecting a number of outlying "spokes".