standby Synonyms

mission readiness locum stand-in fill-in at the ready preparedness backup watch understudy surrogation surrogate supply suppletive bookable stopgap war preparedness war awareness war preparations war-readiness cobbled together good right arm subs waitlist waiting list spare part second string fallback supe successor substitute linchpin idle figurante figurant emergency double deputy condition commitment auxiliary apologist alternative makeshift promptness status stand-by stalwart spare second reserve