An advantageous defensive support; a foothold.
A given point or body upon which troops are formed, or by which they are marched in line or column.
To prop or sustain with a sprag.
To check the motion of, as a carriage on a steep slope, by putting a sprag between the spokes of the wheel.
A billet of wood; a piece of timber, a similar solid object or constructed unit used as a prop.
A young salmon.