second-string
1. [ adjective ] being a replacement or substitute for a regular member of a team
Synonyms: substitute
Related terms: secondary
Similar spelling:   second-best
  second_reading
  Second_Coming
  second-sighted
  second_best
  second-year
  second_wind
  second-rater
  second_joint
  second-guess
  second-class
  Second_Reich
  second_estate
  second_nature
  seasoned_salt
  second_person
  secondhand
  secondment
  second_cousin
  second_base
  second_mortgage
  second-rate
  second_hand
  second_gear
  secondarily
  secondguess
  second_baseman