(of a bridge, arch, etc.) extend from side to side of

the stream was spanned by a narrow bridge

extend across (a period of time or a range of subjects)

their interests span almost all the conventional disciplines

the full extent of something from end to end; the amount of space that something covers

a warehouse with a clear span of 28 feet

the length of time for which something lasts

a short concentration span

a rope with its ends fastened at different points to a spar or other object in order to provide a purchase

a matched pair of horses, mules, or oxen

a lot

thanks a span

yoke (an animal)

he spanned his donkeys to the cart