1. (baseball) the person who plays the position of catcher
   - catcher 
2. (baseball) a fence or screen (as behind home plate) to prevent the ball from travelling out of the playing field 
3. A precaution in case of an emergency
   "he acted as a backstop in case anything went wrong"

1. Act as a backstop

Derived forms: backstopped, backstops, backstopping

Type of: fence, fencing, guard, infielder, play, precaution, safeguard

Encyclopedia: Backstop

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