D defs.my
Entry 1 sense Webster, 1913

first-string

· IPA
01 adj. First to play in a game; not reserved as a substitute; -- of members of a team. Also used in non-sports contexts to mean first-rate.
  1. 1.
    First to play in a game; not reserved as a substitute; -- of members of a team. Also used in non-sports contexts to mean first-rate. See: first-rate