Definition of second-stringer in US English:

second-stringer

noun

  • See second string

    • ‘The team that did show up, comprised mostly of second-stringers and unripened teen-agers, lost to Hapoel by two goals.’
    • ‘Harrington started 2002 as a backup in a season when second-stringers really stood out.’
    • ‘None of the second-stringers who came on made much of an impact.’
    • ‘We played the whole year with second-stringers, and we only had eight players.’
    • ‘Almost every game, at least one or two of the five second-stringers plays well enough to carry the unit.’