Cases of word usage

1) a small cart with two wheels, pulled or pushed by hand, e.g. one used to sell fruit (barrow)

2) the long handle of an axe or other tool; a long bar joining parts of a machine; one of the pair of bars (wooden poles) between which a horse pulls a cart etc (shaft)

3) a small cart with one wheel and two handles, used for moving small loads (wheelbarrow)

4) a sharp piece of wood placed across the necks of oxen pulling a cart etc; a symbol of defeat etc (yoke)