the central part of a car wheel (or fan or propeller etc) through which the shaft or axle passes
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"
a Gestalt principle of organization holding that (other things being equal) objects or events that are near to one another (in space or time) are perceived as belonging together as a unit
(music) playing in a different key from the key intended; moving the pitch of a piece of music upwards or downwards
the act of reversing the order or place of
(electricity) a rearrangement of the relative positions of power lines in order to minimize the effects of mutual capacitance and inductance; "he wrote a textbook on the electrical effects of transposition"
(mathematics) the transfer of a quantity from one side of an equation to the other along with a change of sign
(genetics) a kind of mutation in which a chromosomal segment is transfered to a new position on the same or another chromosome