- backstop⇄backstop, noun, verb, -stopped,-stopping.
- backstop⇄noun 1a. a wall, fence, or screen used in various games, such as baseball and tennis, to keep the ball in the area of play.
b. (Informal.) a player who stops balls in various games, especially a catcher in baseball and cricket.
2. (Informal - backstop⇄v.i., v.t. (Informal.)1. to serve as a backstop.
Ex. The ordinary safeguards against the escape of radioactive rays are backstopped by the 5-ft. thick walls of the plant (Time).
2. (Figurative.) to support; reinforce.
Ex. There are a d