backstop
noun(back-stop)
something at the back serving as a stop: such as
backstop
noun(back-stop)
a screen or fence for keeping a ball from leaving the field of play
backstop
noun(back-stop)
a stop (such as a pawl) that prevents a backward movement (as of a wheel)
backstop
verb(back-stop)
support, bolster
backstop
verb(back-stop)
to serve as a backstop to
backstop
verb(back-stop)
to play the position of goalkeeper for