railroad_tie
1. [ noun ] one of the cross braces that support the rails on a railway track
Synonyms: crosstie sleeper tie
Examples:

"the British call a railroad tie a sleeper"

Related terms: brace railroad_track
Similar spelling:   railroad_ticket
  railroad_bed
  railroad_tunnel
  railroader
  railroad_vine
  railroad_line
  railroad_flat
  railroad_train
  railroad_track
  railroad_man
  railroad_car
  railroad_worm
  railroading
  railroad_siding