8
call for aid
2
precaution
1
fence
1
obstruction(noun, verb)
1
safeguard
1
uphold
0
fencing
0
guard
0
infielder
0
play
11 years ago|81 views|share |citing 
APASmart Define. (2015). backstop thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/backstop/thesaurus/broader
ChicagoSmart Define. 2015. "backstop thesaurus" https://smartdefine.org/backstop/thesaurus/broader (accessed September 21, 2026).
HarvardSmart Define 2015, backstop thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/backstop/thesaurus/broader>.
MLASmart Define. "backstop thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/backstop/thesaurus/broader>