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surefire

1 ENTRIES FOUND:
surefire /ˈʃɚˈfajɚ/ Brit /ˈʃɔːˈfajə/ adjective
surefire
/ˈʃɚˈfajɚ/ Brit /ˈʃɔːˈfajə/
adjective
Britannica Dictionary definition of SUREFIRE
always used before a noun informal
: certain not to fail : sure to be successful