From one side to the other. Names a crossing rather than a position.

Running side to side. Level with the ground, which is why it reads as breadth.

The part equally far from both ends. A middle is defined entirely by the ends it lies between.

The span between a least and a greatest. A range states what is possible without saying which is actual.

Of large extent across. Width buys coverage and costs concentration.

How far a thing reaches across. The measure of a span at right angles to its length.